diff --git a/src/pkcs11/slot.c b/src/pkcs11/slot.c
index 1ba74d73..e50cbeea 100644
--- a/src/pkcs11/slot.c
+++ b/src/pkcs11/slot.c
@@ -139,6 +139,19 @@ CK_RV card_removed(sc_reader_t * reader)
 	if (card) {
 	        card->framework->unbind(card);
 	        sc_disconnect_card(card->card);
+		/* FIXME: free mechanisms
+		 * spaces allocated by the
+		 * sc_pkcs11_register_sign_and_hash_mechanism
+		 * and sc_pkcs11_new_fw_mechanism.
+		 * but see sc_pkcs11_register_generic_mechanisms
+		for (i=0; i < card->nmechanisms; ++i) {
+			// if 'mech_data' is a pointer earlier returned by the ?alloc
+			free(card->mechanisms[i]->mech_data);
+			// if 'mechanisms[i]' is a pointer earlier returned by the ?alloc
+			free(card->mechanisms[i]);
+		}
+		*/
+		free(card->mechanisms);
         	free(card);
         }