diff --git a/src/nm-auth-manager.c b/src/nm-auth-manager.c
index ca1a2f18f..199a2e403 100644
--- a/src/nm-auth-manager.c
+++ b/src/nm-auth-manager.c
@@ -670,7 +670,6 @@ dispose (GObject *object)
 {
 	NMAuthManager* self = NM_AUTH_MANAGER (object);
 	NMAuthManagerPrivate *priv = NM_AUTH_MANAGER_GET_PRIVATE (self);
-	gs_free_error GError *error_disposing = NULL;
 
 	_LOGD ("dispose");