diff --git a/test/main.c b/test/main.c
index b24392f0..f59af288 100644
--- a/test/main.c
+++ b/test/main.c
@@ -75,5 +75,6 @@ int main(int argc, char *argv[])
 	uiControlShow(uiControl(w));
 	uiMain();
 	printf("after uiMain()\n");
+	uiUninit();
 	return 0;
 }
diff --git a/ui.idl b/ui.idl
index ce03ea6b..8b442408 100644
--- a/ui.idl
+++ b/ui.idl
@@ -18,6 +18,7 @@ struct InitOptions {
 };
 
 func Init(options *InitOptions) *const char;
+func Uninit(void);
 func FreeInitError(err *const char);
 
 func Main(void);