diff --git a/adv-simd.h b/adv-simd.h
index 40b5ff8c..4df79e9f 100644
--- a/adv-simd.h
+++ b/adv-simd.h
@@ -47,7 +47,8 @@
 #endif
 
 #if (CRYPTOPP_SSE2_INTRIN_AVAILABLE)
-# include <immintrin.h>
+# include <emmintrin.h>
+# include <pmmintrin.h>
 # include <xmmintrin.h>
 #endif