1 files changed, 3 insertions, 0 deletions
diff --git a/src/hash_map.h b/src/hash_map.h
index a91aeb9..55d2c9d 100644
--- a/src/hash_map.h
+++ b/src/hash_map.h
@@ -18,6 +18,7 @@
 #include <algorithm>
 #include <string.h>
 #include "string_piece.h"
+#include "util.h"
 
 // MurmurHash2, by Austin Appleby
 static inline
@@ -40,7 +41,9 @@ unsigned int MurmurHash2(const void* key, size_t len) {
   }
   switch (len) {
   case 3: h ^= data[2] << 16;
+          NINJA_FALLTHROUGH;
   case 2: h ^= data[1] << 8;
+          NINJA_FALLTHROUGH;
   case 1: h ^= data[0];
     h *= m;
   };