diff --git a/tests/scripts/makeldbm.sh b/tests/scripts/makeldbm.sh
index 44834903a9..0431f37fe1 100755
--- a/tests/scripts/makeldbm.sh
+++ b/tests/scripts/makeldbm.sh
@@ -4,7 +4,7 @@
 
 echo "Cleaning up in $DBDIR..."
 
-rm -f $DBDIR/[^C]*
+rm -f $DBDIR/[!C]*
 
 echo "Running ldif2ldbm to build slapd database..."
 $LDIF2LDBM -f $CONF -i $LDIF -e ../servers/slapd/tools