diff --git a/similarity_search/src/method/hnsw.cc b/similarity_search/src/method/hnsw.cc
index 2741701..7587f7f 100644
--- a/similarity_search/src/method/hnsw.cc
+++ b/similarity_search/src/method/hnsw.cc
@@ -27,7 +27,7 @@
 #include <iostream>
 #include <memory>
 // This is only for _mm_prefetch
-#include <mmintrin.h>
+#include <xmmintrin.h>
 
 #include "portable_simd.h"
 #include "knnquery.h"
diff --git a/similarity_search/src/method/hnsw_distfunc_opt.cc b/similarity_search/src/method/hnsw_distfunc_opt.cc
index 4c691bd..6f1a9e6 100644
--- a/similarity_search/src/method/hnsw_distfunc_opt.cc
+++ b/similarity_search/src/method/hnsw_distfunc_opt.cc
@@ -30,7 +30,7 @@
 #include "rangequery.h"
 #include "portable_intrinsics.h"
 // This is only for _mm_prefetch
-#include <mmintrin.h>
+#include <xmmintrin.h>
 #include "space.h"
 
 #include "sort_arr_bi.h"
diff --git a/similarity_search/src/method/pivot_neighb_invindx.cc b/similarity_search/src/method/pivot_neighb_invindx.cc
index c6113c7..a7d818b 100644
--- a/similarity_search/src/method/pivot_neighb_invindx.cc
+++ b/similarity_search/src/method/pivot_neighb_invindx.cc
@@ -21,7 +21,7 @@
 #include <unordered_map>
 
 // This is only for _mm_prefetch
-#include <mmintrin.h>
+#include <xmmintrin.h>
 
 #include "portable_simd.h"
 #include "space.h"
diff --git a/similarity_search/src/method/small_world_rand.cc b/similarity_search/src/method/small_world_rand.cc
index e67ea97..92fe70a 100644
--- a/similarity_search/src/method/small_world_rand.cc
+++ b/similarity_search/src/method/small_world_rand.cc
@@ -17,7 +17,7 @@
 #include <iostream>
 #include <cstddef>
 // This is only for _mm_prefetch
-#include <mmintrin.h>
+#include <xmmintrin.h>
 
 #if defined(_WIN32) || defined(WIN32)
 #include <intrin.h>
diff --git a/similarity_search/src/method/vptree.cc b/similarity_search/src/method/vptree.cc
index 4da3b5f..d77e419 100644
--- a/similarity_search/src/method/vptree.cc
+++ b/similarity_search/src/method/vptree.cc
@@ -20,7 +20,7 @@
 #include <cmath>
 
 // This is only for _mm_prefetch
-#include <mmintrin.h>
+#include <xmmintrin.h>
 #if defined(_WIN32) || defined(WIN32)
 #include <intrin.h>
 #endif
diff --git a/similarity_search/test/test_overlap.cc b/similarity_search/test/test_overlap.cc
index 326b26b..413d66d 100644
--- a/similarity_search/test/test_overlap.cc
+++ b/similarity_search/test/test_overlap.cc
@@ -12,7 +12,6 @@
  * Apache License Version 2.0 http://www.apache.org/licenses/.
  *
  */
-#include <sys/time.h>
 
 #include <logging.h>
 #include <idtype.h>