Comment fixed.
diff --git a/src/core/ngx_murmurhash.h b/src/core/ngx_murmurhash.h
index 2b2b70d..54e867d 100644
--- a/src/core/ngx_murmurhash.h
+++ b/src/core/ngx_murmurhash.h
@@ -16,4 +16,4 @@
 uint32_t ngx_murmur_hash2(u_char *data, size_t len);
 
 
-#endif /* _NGX_CRC_H_INCLUDED_ */
+#endif /* _NGX_MURMURHASH_H_INCLUDED_ */