1 files changed, 3 insertions, 0 deletions
diff --git a/oui.c b/oui.c
index 2ef8dff..94b6ba1 100644
--- a/oui.c
+++ b/oui.c
@@ -109,6 +109,9 @@ static int dissector_cleanup_oui_hash(void *ptr)
 
 void dissector_cleanup_oui(void)
 {
+	if (!initialized)
+		return;
+
 	for_each_hash(&oui, dissector_cleanup_oui_hash);
 	free_hash(&oui);
 	initialized = false;