diff --git a/lib/win32ksys/CMakeLists.txt b/lib/win32ksys/CMakeLists.txt
index afd2450ffbd..9877d86715c 100644
--- a/lib/win32ksys/CMakeLists.txt
+++ b/lib/win32ksys/CMakeLists.txt
@@ -2,3 +2,4 @@
 set_source_files_properties(${REACTOS_BINARY_DIR}/lib/win32ksys/win32k.S PROPERTIES GENERATED TRUE)
 add_library(win32ksys ${REACTOS_BINARY_DIR}/lib/win32ksys/win32k.S)
 add_dependencies(win32ksys win32k_S asm)
+set_target_properties(win32ksys PROPERTIES LINKER_LANGUAGE C)