diff --git a/src/openMVG/matching/metric_hamming.hpp b/src/openMVG/matching/metric_hamming.hpp
index 2c40eab485..d32352568a 100644
--- a/src/openMVG/matching/metric_hamming.hpp
+++ b/src/openMVG/matching/metric_hamming.hpp
@@ -110,7 +110,7 @@ struct Hamming
       const ElementType * pb = reinterpret_cast<const ElementType*> (b);
       return popcntLoop(pa, pb, size);
     }
-    return {0};
+    return 0;
   }
 };