diff --git a/src/hci.c b/src/hci.c
index 13ec71d60..af168b599 100644
--- a/src/hci.c
+++ b/src/hci.c
@@ -3124,6 +3124,16 @@ void hci_init(const hci_transport_t *transport, const void *config){
     hci_state_reset();
 }
 
+void hci_deinit(void){
+#ifdef HAVE_MALLOC
+    if (hci_stack) {
+        free(hci_stack);
+    }
+#endif
+    hci_stack = NULL;
+    disable_l2cap_timeouts = 0;
+}
+
 /**
  * @brief Configure Bluetooth chipset driver. Has to be called before power on, or right after receiving the local version information
  */
diff --git a/src/hci.h b/src/hci.h
index 9ce6bae57..bcf4c3f00 100644
--- a/src/hci.h
+++ b/src/hci.h
@@ -1311,6 +1311,11 @@ uint8_t hci_get_allow_role_switch(void);
  */
 HCI_STATE hci_get_state(void);
 
+/**
+ * @brief De-Init HCI
+ */
+void hci_deinit(void);
+
 // setup test connections, used for fuzzing
 void hci_setup_test_connections_fuzz(void);