diff --git a/src/CollectionIdentifier.cc b/src/CollectionIdentifier.cc
index d6c2f235..cda034a5 100644
--- a/src/CollectionIdentifier.cc
+++ b/src/CollectionIdentifier.cc
@@ -20,9 +20,11 @@
 #include <vector>
 
 #include <gz/common/Filesystem.hh>
+#include <gz/common/URI.hh>
 
 #include "gz/fuel_tools/ClientConfig.hh"
 #include "gz/fuel_tools/CollectionIdentifier.hh"
+#include "gz/fuel_tools/Helpers.hh"
 
 
 namespace gz::fuel_tools
diff --git a/src/WorldIdentifier.cc b/src/WorldIdentifier.cc
index 085fc611..bc23414f 100644
--- a/src/WorldIdentifier.cc
+++ b/src/WorldIdentifier.cc
@@ -21,6 +21,7 @@
 
 #include <gz/common/Filesystem.hh>
 #include <gz/common/StringUtils.hh>
+#include <gz/common/URI.hh>
 #include <gz/common/Util.hh>
 
 #include "gz/fuel_tools/ClientConfig.hh"