diff --git a/bin/tests/system/rsabigexponent/ns2/sign.sh b/bin/tests/system/rsabigexponent/ns2/sign.sh
index fa7aea80dc..82e51c61f7 100755
--- a/bin/tests/system/rsabigexponent/ns2/sign.sh
+++ b/bin/tests/system/rsabigexponent/ns2/sign.sh
@@ -23,4 +23,4 @@ done
 
 $SIGNER -g -s 20000101000000 -e 20361231235959 -o $zone \
 	$infile Kexample.+005+51829 Kexample.+005+51829 \
-	> /dev/null 2> signer.err
+	> /dev/null 2> signer.err || true