diff --git a/modules/TDEMacros.cmake b/modules/TDEMacros.cmake
index 25b27dd..df62048 100644
--- a/modules/TDEMacros.cmake
+++ b/modules/TDEMacros.cmake
@@ -175,6 +175,9 @@ macro( tde_install_icons )
         if( "${_group}" STREQUAL "filesys" )
           set( _group  "filesystems" )
         endif( "${_group}" STREQUAL "filesys" )
+        if( "${_group}" STREQUAL "category" )
+          set( _group  "categories" )
+        endif( "${_group}" STREQUAL "category" )
         if( "${_group}" STREQUAL "device" )
           set( _group  "devices" )
         endif( "${_group}" STREQUAL "device" )