diff --git a/launcher/updater/PrismExternalUpdater.cpp b/launcher/updater/PrismExternalUpdater.cpp
index 9c8c1f10c..72ca04ce2 100644
--- a/launcher/updater/PrismExternalUpdater.cpp
+++ b/launcher/updater/PrismExternalUpdater.cpp
@@ -73,6 +73,9 @@ PrismExternalUpdater::PrismExternalUpdater(QWidget* parent, const QString& appDi
     priv->parent = parent;
     connectTimer();
     resetAutoCheckTimer();
+    if (priv->updateInterval == 0) { // "On Launch"
+        checkForUpdates(false);
+    }
 }
 
 PrismExternalUpdater::~PrismExternalUpdater()