diff --git a/Modules/CMakeASM_MASMInformation.cmake b/Modules/CMakeASM_MASMInformation.cmake
index eb105ab10..972883cdf 100644
--- a/Modules/CMakeASM_MASMInformation.cmake
+++ b/Modules/CMakeASM_MASMInformation.cmake
@@ -18,7 +18,7 @@ set(ASM_DIALECT "_MASM")
 
 set(CMAKE_ASM${ASM_DIALECT}_SOURCE_FILE_EXTENSIONS asm)
 
-set(CMAKE_ASM${ASM_DIALECT}_COMPILE_OBJECT "<CMAKE_ASM${ASM_DIALECT}_COMPILER> <FLAGS> /c  /Fo <OBJECT> <SOURCE>")
+set(CMAKE_ASM${ASM_DIALECT}_COMPILE_OBJECT "<CMAKE_ASM${ASM_DIALECT}_COMPILER> <DEFINES> <FLAGS> /c  /Fo <OBJECT> <SOURCE>")
 
 include(CMakeASMInformation)
 set(ASM_DIALECT)