diff --git a/README.md b/README.md
index 4583ce65..b93261bb 100644
--- a/README.md
+++ b/README.md
@@ -305,6 +305,7 @@ unclassified:
       - name: "S7_1200_1"
         description: "S7 PLC model 1200"
         labels: "plc:S7 model:1200"
+        reservedBy: "Reserved due maintenance window"
       - name: "S7_1200_2"
         labels: "plc:S7 model:1200"
       - name: "Resource-with-properties"
@@ -313,7 +314,7 @@ unclassified:
             value: "Value"
 ```
 
-Properties *description*, *labels* and *properties* are optional.
+Properties *description*, *labels* and *reservedBy* are optional.
 
 ----
 
diff --git a/src/main/java/org/jenkins/plugins/lockableresources/LockableResource.java b/src/main/java/org/jenkins/plugins/lockableresources/LockableResource.java
index ee549667..509f8abb 100644
--- a/src/main/java/org/jenkins/plugins/lockableresources/LockableResource.java
+++ b/src/main/java/org/jenkins/plugins/lockableresources/LockableResource.java
@@ -70,8 +70,8 @@ public class LockableResource extends AbstractDescribableImpl<LockableResource>
     private transient String labels = null;
 
     private List<String> labelsAsList = new ArrayList<>();
-    private transient String reservedBy = null;
-    private transient Date reservedTimestamp = null;
+    private String reservedBy = null;
+    private Date reservedTimestamp = null;
     private String note = "";
 
     /**
diff --git a/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config.jelly b/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config.jelly
index 1f7e0031..df4a099a 100644
--- a/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config.jelly
+++ b/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config.jelly
@@ -20,6 +20,9 @@
   <f:entry title="${%entry.labels.title}" field="labels">
     <f:textbox/>
   </f:entry>
+  <f:entry title="${%entry.reservedBy.title}" field="reservedBy">
+    <f:textbox/>
+  </f:entry>
   <f:entry title="${%entry.properties.title}">
     <f:repeatableProperty field="properties" header="" minimum="0" add="${%entry.properties.add}">
       <f:block>
diff --git a/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config.properties b/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config.properties
index bd6fe2fc..29239d25 100644
--- a/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config.properties
+++ b/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config.properties
@@ -23,6 +23,7 @@
 entry.name.title=Name
 entry.description.title=Description
 entry.labels.title=Labels
+entry.reservedBy.title=Reserved by
 entry.properties.title=Properties
 entry.properties.add=Add Property
 entry.properties.delete=Delete Property
\ No newline at end of file
diff --git a/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config_cs.properties b/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config_cs.properties
index 0fd70285..49aae4af 100644
--- a/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config_cs.properties
+++ b/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config_cs.properties
@@ -22,4 +22,5 @@
 
 entry.name.title=Jm\u00e9no
 entry.description.title=Popis
-entry.labels.title=Popisky
\ No newline at end of file
+entry.labels.title=Popisky
+entry.reservedBy.title=Rezervace u\u017eivatelem
\ No newline at end of file
diff --git a/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config_de.properties b/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config_de.properties
index cdd76fa4..ac9b11b4 100644
--- a/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config_de.properties
+++ b/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config_de.properties
@@ -22,4 +22,5 @@
 
 entry.name.title=Name
 entry.description.title=Beschreibung
-entry.labels.title=Labels
\ No newline at end of file
+entry.labels.title=Labels
+entry.reservedBy.title=Reserviert durch
\ No newline at end of file
diff --git a/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config_fr.properties b/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config_fr.properties
index 5e798e09..27cd33a6 100644
--- a/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config_fr.properties
+++ b/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config_fr.properties
@@ -23,6 +23,7 @@
 entry.name.title=Nom
 entry.description.title=Description
 entry.labels.title=Libell\u00e9s
+entry.reservedBy.title=R\u00e9serv\u00e9e par
 entry.properties.title=Propri\u00e9t\u00e9s
 entry.properties.add=Ajouter une propri\u00e9t\u00e9
 entry.properties.delete=Supprimer une propri\u00e9t\u00e9
\ No newline at end of file
diff --git a/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config_sk.properties b/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config_sk.properties
index f369e675..25fac2de 100644
--- a/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config_sk.properties
+++ b/src/main/resources/org/jenkins/plugins/lockableresources/LockableResource/config_sk.properties
@@ -22,4 +22,5 @@
 
 entry.name.title=Meno
 entry.description.title=Popis
-entry.labels.title=\u0160t\u00edtky
\ No newline at end of file
+entry.labels.title=\u0160t\u00edtky
+entry.reservedBy.title=Rezervovan\u00e9 u\u017e\u00edvate\u013eom
\ No newline at end of file
diff --git a/src/test/java/org/jenkins/plugins/lockableresources/ConfigurationAsCodeTest.java b/src/test/java/org/jenkins/plugins/lockableresources/ConfigurationAsCodeTest.java
index 9a670936..aec2a1e0 100644
--- a/src/test/java/org/jenkins/plugins/lockableresources/ConfigurationAsCodeTest.java
+++ b/src/test/java/org/jenkins/plugins/lockableresources/ConfigurationAsCodeTest.java
@@ -42,8 +42,7 @@ public void should_support_configuration_as_code() {
         assertEquals("Resource_A", declaredResource.getName());
         assertEquals("Description_A", declaredResource.getDescription());
         assertEquals("Label_A", declaredResource.getLabels());
-        // not supported in JCaC
-        // assertEquals("Reserved_A", declaredResource.getReservedBy());
+        assertEquals("Reserved_A", declaredResource.getReservedBy());
         assertEquals("Note A", declaredResource.getNote());
 
         assertEquals(
@@ -55,8 +54,7 @@ public void should_support_configuration_as_code() {
         assertEquals("Resource_A", resource.getName());
         assertEquals("Description_A", resource.getDescription());
         assertEquals("Label_A", resource.getLabels());
-        // not supported in JCaC
-        // assertEquals("Reserved_A", resource.getReservedBy());
+        assertEquals("Reserved_A", resource.getReservedBy());
         assertEquals("Note A", resource.getNote());
     }
 
diff --git a/src/test/resources/org/jenkins/plugins/lockableresources/casc_expected_output.yml b/src/test/resources/org/jenkins/plugins/lockableresources/casc_expected_output.yml
index 0715bc11..50d19d66 100644
--- a/src/test/resources/org/jenkins/plugins/lockableresources/casc_expected_output.yml
+++ b/src/test/resources/org/jenkins/plugins/lockableresources/casc_expected_output.yml
@@ -3,3 +3,4 @@ declaredResources:
   labels: "Label_A"
   name: "Resource_A"
   note: "Note A"
+  reservedBy: "Reserved_A"
diff --git a/src/test/resources/org/jenkins/plugins/lockableresources/configuration-as-code.yml b/src/test/resources/org/jenkins/plugins/lockableresources/configuration-as-code.yml
index 6a77c7a0..1690a7f8 100644
--- a/src/test/resources/org/jenkins/plugins/lockableresources/configuration-as-code.yml
+++ b/src/test/resources/org/jenkins/plugins/lockableresources/configuration-as-code.yml
@@ -10,4 +10,5 @@ unclassified:
       - description: "Description_A"
         labels: "Label_A"
         name: "Resource_A"
+        reservedBy: "Reserved_A"
         note: "Note A"