diff --git a/SWIG/Lib/swiglabels.swg b/SWIG/Lib/swiglabels.swg
index 48230ed07..24a7c4c70 100644
--- a/SWIG/Lib/swiglabels.swg
+++ b/SWIG/Lib/swiglabels.swg
@@ -30,7 +30,7 @@
 /* attribute recognised by some compilers to avoid 'unused' warnings */
 #ifndef SWIGUNUSED
 # if defined(__GNUC__) || defined(__ICC)
-#   define SWIGUNUSED __attribute__ ((unused)) 
+#   define SWIGUNUSED __attribute__ ((__unused__)) 
 # else
 #   define SWIGUNUSED 
 # endif