--- a/cmake/ConfigGen.cmake
+++ b/cmake/ConfigGen.cmake
@@ -92,7 +92,7 @@
   # remove source and build dir includes
   caffe_get_items_with_prefix(${PROJECT_SOURCE_DIR} Caffe_INCLUDE_DIRS __insource)
   caffe_get_items_with_prefix(${PROJECT_BINARY_DIR} Caffe_INCLUDE_DIRS __inbinary)
-  list(REMOVE_ITEM Caffe_INCLUDE_DIRS ${__insource} ${__inbinary})
+  list(REMOVE_ITEM Caffe_INCLUDE_DIRS ${__insource} ${__inbinary} "")
 
   # add `install` include folder
   set(lines
