diff --git a/contrib/ipfilter/lib/save_v2trap.c b/contrib/ipfilter/lib/save_v2trap.c
index 78e76f6646f..0507be9f269 100644
--- a/contrib/ipfilter/lib/save_v2trap.c
+++ b/contrib/ipfilter/lib/save_v2trap.c
@@ -124,8 +124,10 @@ snmpv2_parse(char **strings)
 	str = strdup(*strings);
 
 	ctx = calloc(1, sizeof(*ctx));
-	if (ctx == NULL)
+	if (ctx == NULL) {
+		free(str);
 		return NULL;
+	}
 
 	ctx->fd = -1;