diff --git a/api/oauth.go b/api/oauth.go
index 47c595c..5a77b57 100644
--- a/api/oauth.go
+++ b/api/oauth.go
@@ -108,6 +108,11 @@ func (o Oauth) keepAlive() {
 		return
 	}
 
+	if o.refresher == nil {
+		o.logger.Error("No refresher provided.")
+		return
+	}
+
 	if o.keepAliveRunning {
 		return
 	}