diff --git a/dnsbl.c b/dnsbl.c
index 51abf91..8d79c55 100644
--- a/dnsbl.c
+++ b/dnsbl.c
@@ -444,6 +444,7 @@ static int dnsbl_config_handler(mowgli_config_file_entry_t *ce)
 	{
 		char *line = sstrdup(cce->varname);
 		new_blacklist(line);
+		free(line);
 	}
 
 	return 0;