diff --git a/src/themes/default/collections/form.variables b/src/themes/default/collections/form.variables
index 6413b8e1a3..d68728a3c1 100644
--- a/src/themes/default/collections/form.variables
+++ b/src/themes/default/collections/form.variables
@@ -33,6 +33,7 @@
 @inputBorderRadius: @absoluteBorderRadius;
 @inputColor: @textColor;
 @inputTransition:
+  background-color @defaultDuration @defaultEasing,
   color @defaultDuration @defaultEasing,
   border-color @defaultDuration @defaultEasing
 ;
@@ -186,4 +187,4 @@
        Groups
 --------------------*/
 
-@inlineFieldsMargin: 0em 1em 0em 0em;
\ No newline at end of file
+@inlineFieldsMargin: 0em 1em 0em 0em;