diff --git a/util/selftest.pl b/util/selftest.pl
index 736eacb11ec972a900cfa85707baa0161a965b0e..4778c5ab01df7d1af8c9ed5b380fc800b3c23a27 100644
--- a/util/selftest.pl
+++ b/util/selftest.pl
@@ -49,7 +49,7 @@ if (open(IN,"<Makefile")) {
 }
 
 $cversion=`$cc -v 2>&1`;
-$cversion=`$cc -V 2>&1` if $cversion =~ "usage";
+$cversion=`$cc -V 2>&1` if $cversion =~ "[Uu]sage";
 $cversion=`$cc -V |head -1` if $cversion =~ "Error";
 $cversion=`$cc --version` if $cversion eq "";
 $cversion =~ s/Reading specs.*\n//;