diff --git a/include/mbedtls/error.h b/include/mbedtls/error.h
index 27420ce..b546d4d 100644
--- a/include/mbedtls/error.h
+++ b/include/mbedtls/error.h
@@ -163,7 +163,7 @@
     (void)file;
     (void)line;
 
-    return( high + low );
+    return high + low ;
 }
 
 /**