diff --git a/src/Doc/BuildDevDoc.cfg.in b/src/Doc/BuildDevDoc.cfg.in
index 5cbb633d12e4..32d90455a002 100644
--- a/src/Doc/BuildDevDoc.cfg.in
+++ b/src/Doc/BuildDevDoc.cfg.in
@@ -638,7 +638,8 @@ EXCLUDE_PATTERNS       =*.moc.* \
                          */swigpyrun*.* \
                          */lex.*.c \
                          */.svn/* \
-                         */CMakeFiles/*
+                         */CMakeFiles/* \
+                         *_rc.py
 
 # The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
 # (namespaces, classes, functions, etc.) that should be excluded from the
diff --git a/src/Doc/BuildDocDoxy.cfg.in b/src/Doc/BuildDocDoxy.cfg.in
index 4dc0a0c6a732..bdc380be329d 100644
--- a/src/Doc/BuildDocDoxy.cfg.in
+++ b/src/Doc/BuildDocDoxy.cfg.in
@@ -615,7 +615,8 @@ EXCLUDE_SYMLINKS       = NO
 
 EXCLUDE_PATTERNS       = *.moc.* \
                          moc_* \
-                         *.ui.h
+                         *.ui.h \
+                         *_rc.py
 
 # The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
 # (namespaces, classes, functions, etc.) that should be excluded from the
diff --git a/src/Doc/CMakeLists.txt b/src/Doc/CMakeLists.txt
index e197e2831b70..515c163ee2ce 100644
--- a/src/Doc/CMakeLists.txt
+++ b/src/Doc/CMakeLists.txt
@@ -104,6 +104,8 @@ if(DOXYGEN_FOUND)
         )
 
     endif( FREECAD_MAINTAINERS_BUILD )
-
+else( DOXYGEN_FOUND )
+    ADD_CUSTOM_TARGET(DevDoc
+                      echo "Doxygen not found.  Install it and rerun CMake")
 endif( DOXYGEN_FOUND )