diff --git a/libfreerdp/core/test/TestConnect.c b/libfreerdp/core/test/TestConnect.c
index 79a41529f..5b439f57d 100644
--- a/libfreerdp/core/test/TestConnect.c
+++ b/libfreerdp/core/test/TestConnect.c
@@ -26,6 +26,13 @@ static int runInstance(int argc, char* argv[], freerdp** inst, DWORD timeout)
 	if (inst)
 		*inst = context->instance;
 
+	context->instance->ChooseSmartcard = NULL;
+	context->instance->PresentGatewayMessage = NULL;
+	context->instance->LogonErrorInfo = NULL;
+	context->instance->AuthenticateEx = NULL;
+	context->instance->VerifyCertificateEx = NULL;
+	context->instance->VerifyChangedCertificateEx = NULL;
+
 	if (!freerdp_settings_set_bool(context->settings, FreeRDP_DeactivateClientDecoding, TRUE))
 		return FALSE;