diff --git a/source/app.d b/source/app.d
index 573dbf9..34cf2d0 100644
--- a/source/app.d
+++ b/source/app.d
@@ -127,7 +127,7 @@
 				return 0;
 			case "upgrade":
 				dub.loadPackageFromCwd();
-				logInfo("Upgrading project in %s", dub.projectPath.toNativeString);
+				logInfo("Upgrading project in %s", dub.projectPath.toNativeString());
 				logDebug("dub initialized");
 				dub.update(UpdateOptions.Reinstall | (annotate ? UpdateOptions.JustAnnotate : UpdateOptions.None));
 				return 0;