diff --git a/src/pkcs11/slot.c b/src/pkcs11/slot.c
index 71519781..c0ac5475 100644
--- a/src/pkcs11/slot.c
+++ b/src/pkcs11/slot.c
@@ -291,7 +291,9 @@ CK_RV slot_token_removed(int id)
 
 	/* Release framework stuff */
 	if (slot->card != NULL) {
-		if (slot->fw_data != NULL)
+		if (slot->fw_data != NULL &&
+				slot->card->framework != NULL &&
+				slot->card->framework->release_token != NULL)
 			slot->card->framework->release_token(slot->card, slot->fw_data);
 		slot->card->num_slots--;
 	}