diff --git a/src/crypto/city.cpp b/src/crypto/city.cpp
index af3a91b..cfd72e0 100644
--- a/src/crypto/city.cpp
+++ b/src/crypto/city.cpp
@@ -38,9 +38,10 @@
 #include <boost/endian/buffers.hpp>
 
 #if defined(__SSE4_2__) && defined(__x86_64__)
-#include <nmmintrin.h>
+  #include <nmmintrin.h>
+  #define _mm_crc32_u64_impl _mm_crc32_u64
 #else
-uint64_t _mm_crc32_u64(uint64_t a, uint64_t b );
+  uint64_t _mm_crc32_u64_impl(uint64_t a, uint64_t b );
 #endif
 
 namespace fc {
@@ -563,9 +564,9 @@ static void CityHashCrc256Long(const char *s, size_t len,
     g += e;                                     \
     e += z;                                     \
     g += x;                                     \
-    z = _mm_crc32_u64(z, b + g);                \
-    y = _mm_crc32_u64(y, e + h);                \
-    x = _mm_crc32_u64(x, f + a);                \
+    z = _mm_crc32_u64_impl(z, b + g);                \
+    y = _mm_crc32_u64_impl(y, e + h);                \
+    x = _mm_crc32_u64_impl(x, f + a);                \
     e = Rotate(e, r);                           \
     c += e;                                     \
     s += 40
diff --git a/src/crypto/crc.cpp b/src/crypto/crc.cpp
index 7fa8cb1..28e99c9 100644
--- a/src/crypto/crc.cpp
+++ b/src/crypto/crc.cpp
@@ -604,7 +604,7 @@ static const uint32_t crc_c[256] = {
 #if !defined __SSE4_2__ || (defined __SSE4_2__ && !defined __x86_64__)
 
 
-uint64_t _mm_crc32_u64(uint64_t a, uint64_t b )
+uint64_t _mm_crc32_u64_impl(uint64_t a, uint64_t b )
 {
     // Squelch warning about unusued variable crc_c
     (void)(crc_c);
@@ -619,7 +619,7 @@ int main( int argc, char** argv )
 {
     uint64_t f = 0x1234;
     uint64_t a = 0x5678;
-    uint32_t f1 = _mm_crc32_u64(f, a); 
+    uint32_t f1 = _mm_crc32_u64_impl(f, a);
     uint32_t f4  = crc32cSlicingBy8(f, (unsigned char*)&a, sizeof(a)); 
     std::cout<<std::hex<<f1<<"\n"<<f2<<"\n"<<f3<<"\n"<<f4<<"\n";
     return 0;