diff --git a/src/lib/nfc.c b/src/lib/nfc.c
index dd5002f..605f854 100644
--- a/src/lib/nfc.c
+++ b/src/lib/nfc.c
@@ -178,7 +178,7 @@ void nfc_disconnect(nfc_device_t* pnd)
   // Release and deselect all active communications
   nfc_initiator_deselect_tag(pnd);
   // Disable RF field to avoid heating
-  nfc_configure(pdi,DCO_ACTIVATE_FIELD,false);
+  nfc_configure(pnd,NDO_ACTIVATE_FIELD,false);
   // Disconnect, clean up and release the device 
   pnd->pdc->disconnect(pnd);
 }