diff --git a/cm256cc/cm256cc.pro b/cm256cc/cm256cc.pro
index 0b50b7a39..f0d01e83f 100644
--- a/cm256cc/cm256cc.pro
+++ b/cm256cc/cm256cc.pro
@@ -16,7 +16,7 @@ INCLUDEPATH += $$LIBCM256CCSRC
 
 DEFINES += __WINDOWS__=1
 DEFINES += USE_SSSE3=1
-QMAKE_CXXFLAGS += -msse4.1
+QMAKE_CXXFLAGS += -mssse3
 
 CONFIG(Release):build_subdir = release
 CONFIG(Debug):build_subdir = debug