diff --git a/src/lib/extern/kwin.d.ts b/src/lib/extern/kwin.ts
similarity index 100%
rename from src/lib/extern/kwin.d.ts
rename to src/lib/extern/kwin.ts
diff --git a/src/lib/extern/notification.d.ts b/src/lib/extern/notification.ts
similarity index 100%
rename from src/lib/extern/notification.d.ts
rename to src/lib/extern/notification.ts
diff --git a/src/lib/extern/qt.d.ts b/src/lib/extern/qt.ts
similarity index 93%
rename from src/lib/extern/qt.d.ts
rename to src/lib/extern/qt.ts
index 989e32b..1116ccc 100644
--- a/src/lib/extern/qt.d.ts
+++ b/src/lib/extern/qt.ts
@@ -1,7 +1,7 @@
 type Console = {
     log(...args: any[]): void;
     trace(): void;
-    assert(boolean, string?): void;
+    assert(assertion: boolean, message?: string): void;
 }
 
 type Qt = {