diff --git a/src/adapter.c b/src/adapter.c
index 163360f..d6f8a37 100644
--- a/src/adapter.c
+++ b/src/adapter.c
@@ -2698,6 +2698,7 @@ static void convert_config(struct btd_adapter *adapter, const char *filename,
 	if (converted) {
 		if (strcmp(converted, "yes") == 0) {
 			DBG("Legacy config file already converted");
+			free(converted);
 			return;
 		}