diff --git a/Gtk3/gtk19/main.cpp b/Gtk3/gtk19/main.cpp
index f61ef9d..c3eb2b8 100644
--- a/Gtk3/gtk19/main.cpp
+++ b/Gtk3/gtk19/main.cpp
@@ -47,5 +47,6 @@ int main(int argc,char *argv[])
     app=gtk_application_new("com.github.daleclack.gtk19",G_APPLICATION_FLAGS_NONE);
     g_signal_connect(app,"activate",G_CALLBACK(activate),NULL);
     status=g_application_run(G_APPLICATION(app),argc,argv);
+    g_object_unref(app);
     return status;
 }