diff --git a/ble/services/DFUService.h b/ble/services/DFUService.h
index 1fdd9f6..4dbec30 100644
--- a/ble/services/DFUService.h
+++ b/ble/services/DFUService.h
@@ -105,11 +105,13 @@ public:
 
             // Call bootloader_start implicitly trough a event handler call
             // it is a work around for bootloader_start not being public in sdk 8.1
-            ble_dfu_t *p_dfu;
-            p_dfu->conn_handle = params->connHandle;
-            ble_dfu_evt_t *p_evt;
-            p_evt->ble_dfu_evt_type = BLE_DFU_START;
-            dfu_app_on_dfu_evt(p_dfu, p_evt);
+            ble_dfu_t p_dfu;
+            ble_dfu_evt_t p_evt;
+
+            p_dfu.conn_handle = params->connHandle;
+            p_evt.ble_dfu_evt_type = BLE_DFU_START;
+
+            dfu_app_on_dfu_evt(&p_dfu, &p_evt);
         }
     }