diff --git a/bootstrap b/bootstrap
index 666d4ca5b..db2a649ca 100755
--- a/bootstrap
+++ b/bootstrap
@@ -27,7 +27,7 @@ if test -n "$lt" ; then
 	if test -x "$lt" ; then
 		LTIZE_VER=`libtoolize --version | head -1 | sed 's/^[^0-9]*//'`
 		LTIZE_VER_MAJOR=`echo $LTIZE_VER | cut -f1 -d'.'`
-		LTIZE_VER_MINOR=`echo $LTIZE_VER | cut -f2 -d'.'`
+		LTIZE_VER_MINOR=`echo $LTIZE_VER | cut -f2 -d'.' | sed -e 's/[^0-9]//g'`
 
 		if test "$LTIZE_VER_MAJOR" -lt "1"; then
 			echo "Libtool 1.4 or greater needed to build configure."