diff --git a/CMakeLists.txt b/CMakeLists.txt
index df2986715b..cfb682cdb8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -320,7 +320,7 @@ configure_file(${OpenMW_SOURCE_DIR}/files/openmw.cfg
 configure_file(${OpenMW_SOURCE_DIR}/files/opencs.cfg
     "${OpenMW_BINARY_DIR}/opencs.cfg")
     
-configure_file(${OpenMW_SOURCE_DIR}/files/opencs/defaultfilters.omwaddon.project
+configure_file(${OpenMW_SOURCE_DIR}/files/opencs/defaultfilters
     "${OpenMW_BINARY_DIR}/resources/defaultfilters" COPYONLY)
 
 if (NOT WIN32 AND NOT APPLE)
diff --git a/files/opencs/defaultfilters.omwaddon.project b/files/opencs/defaultfilters.omwaddon.project
deleted file mode 100644
index 0ac3c8db4b..0000000000
Binary files a/files/opencs/defaultfilters.omwaddon.project and /dev/null differ