diff --git a/toolchain-mingw32.cmake b/toolchain-mingw32.cmake
index 9ad3cea4c37..c608409e3ac 100644
--- a/toolchain-mingw32.cmake
+++ b/toolchain-mingw32.cmake
@@ -25,7 +25,7 @@ SET(CMAKE_C_COMPILER ${MINGW_PREFIX}gcc)
 SET(CMAKE_CXX_COMPILER ${MINGW_PREFIX}g++)
 SET(CMAKE_RC_COMPILER ${MINGW_PREFIX}windres)
 SET(CMAKE_ASM_COMPILER ${MINGW_PREFIX}gcc)
-SET(CMAKE_ASM_COMPILE_OBJECT "<CMAKE_ASM_COMPILER> -x assembler-with-cpp -o <OBJECT> <FLAGS> <DEFINES> -D__ASM__ -c <SOURCE>")
+SET(CMAKE_ASM_COMPILE_OBJECT "<CMAKE_ASM_COMPILER> -x assembler-with-cpp -o <OBJECT> -I${REACTOS_SOURCE_DIR}/include/asm -I${REACTOS_BINARY_DIR}/include/asm <FLAGS> <DEFINES> -D__ASM__ -c <SOURCE>")
 SET(CMAKE_IDL_COMPILER native-widl)
 
 SET(CMAKE_IDL_COMPILE_OBJECT "<CMAKE_IDL_COMPILER> <FLAGS> <DEFINES> -m32 --win32 -h -H <OBJECT> <SOURCE>")
diff --git a/toolchain-msvc.cmake b/toolchain-msvc.cmake
index 4728d8379ff..9df5664f324 100644
--- a/toolchain-msvc.cmake
+++ b/toolchain-msvc.cmake
@@ -35,7 +35,7 @@ SET(CMAKE_RC_COMPILE_OBJECT "<CMAKE_RC_COMPILER> <DEFINES> /I${REACTOS_SOURCE_DI
 SET(CMAKE_IDL_COMPILE_OBJECT "<CMAKE_IDL_COMPILER> <FLAGS> <DEFINES> /win32 /Dstrict_context_handle= /h <OBJECT> <SOURCE>")
 
 SET(CMAKE_ASM_COMPILE_OBJECT 
-    "<CMAKE_C_COMPILER> <FLAGS> <DEFINES> /D__ASM__ /D_USE_ML /EP /c <SOURCE> > <OBJECT>.tmp"
+    "<CMAKE_C_COMPILER> /X /I${REACTOS_SOURCE_DIR}/include/asm /I${REACTOS_BINARY_DIR}/include/asm <FLAGS> <DEFINES> /D__ASM__ /D_USE_ML /EP /c <SOURCE> > <OBJECT>.tmp"
     "<CMAKE_ASM_COMPILER> /Fo<OBJECT> /c /Ta <OBJECT>.tmp")
 
 set(CMAKE_C_FLAGS_INIT "/DWIN32 /D_WINDOWS /W1 /Zm1000")