diff --git a/cmake/modules/WindowsResources.cmake b/cmake/modules/WindowsResources.cmake
index 0a7d7e6..6c47b75 100644
--- a/cmake/modules/WindowsResources.cmake
+++ b/cmake/modules/WindowsResources.cmake
@@ -53,7 +53,6 @@ file(
 list(APPEND RES_FILES "${WINDOWS_RC_FILE}-${CMAKE_BUILD_TYPE}.rc")
 set_property(
     SOURCE "${WINDOWS_RC_FILE}-${CMAKE_BUILD_TYPE}.rc"
-    APPEND
     PROPERTY GENERATED ON)
 set(CMAKE_RC_COMPILER_INIT windres)
 set(CMAKE_RC_COMPILE_OBJECT "<CMAKE_RC_COMPILER> <FLAGS> -O coff <DEFINES> -i <SOURCE> -o <OBJECT>")