diff --git a/sm4-simd.cpp b/sm4-simd.cpp
index fca4a941..6185c9ba 100644
--- a/sm4-simd.cpp
+++ b/sm4-simd.cpp
@@ -22,7 +22,7 @@
 // #undef CRYPTOPP_AESNI_AVAILABLE
 
 #if (CRYPTOPP_AESNI_AVAILABLE)
-# include <smmintrin.h>
+# include <tmmintrin.h>
 # include <wmmintrin.h>
 #endif