diff --git a/configure b/configure
index 3ea67dfb77..3a31ebc8e9 100755
--- a/configure
+++ b/configure
@@ -1281,7 +1281,7 @@ EOF
 	# gcc 4.0 and up supports POWER5
 	if test "$_cc_major" -ge "4"; then
 	    case "$proc" in
-		POWER5) _march='-mcpu=power5' _mcpu='-mtune=power5' ;;
+		POWER5*) _march='-mcpu=power5' _mcpu='-mtune=power5' ;;
 		*) ;;
 	    esac
 	fi