diff --git a/client/Windows/wf_client.c b/client/Windows/wf_client.c
index 4fdd56c87..ceff1a2e7 100644
--- a/client/Windows/wf_client.c
+++ b/client/Windows/wf_client.c
@@ -537,6 +537,8 @@ BOOL wf_authenticate(freerdp* instance, char** username, char** password, char**
 
 	if (strlen(Domain) > 0)
 		*domain = _strdup(Domain);
+	else
+		*domain = _strdup("\0");
 
 	*password = _strdup(Password);