diff --git a/Zend/zend_hash.c b/Zend/zend_hash.c
index 8bddb0c2088..66cfb250d1f 100644
--- a/Zend/zend_hash.c
+++ b/Zend/zend_hash.c
@@ -30,7 +30,6 @@
 #if defined(__AVX2__)
 # include <immintrin.h>
 #elif defined( __SSE2__)
-# include <mmintrin.h>
 # include <emmintrin.h>
 #endif
 
diff --git a/Zend/zend_types.h b/Zend/zend_types.h
index 7676a1d42a5..4a6d00b9d73 100644
--- a/Zend/zend_types.h
+++ b/Zend/zend_types.h
@@ -28,7 +28,6 @@
 #include <stdint.h>
 
 #ifdef __SSE2__
-# include <mmintrin.h>
 # include <emmintrin.h>
 #endif
 #if defined(__AVX2__)