diff --git a/vlib/glfw/glfw.v b/vlib/glfw/glfw.v
index cf237928f6..38e9d72139 100644
--- a/vlib/glfw/glfw.v
+++ b/vlib/glfw/glfw.v
@@ -115,7 +115,7 @@ pub fn create_window(c WinCfg) &Window {
 		println('failed to create a glfw window, make sure you have a GPU driver installed')
 		C.glfwTerminate()
 	}
-	C.printf('create window wnd=%p ptr==%p\n', cwindow, c.ptr)
+	println('create window wnd=$cwindow ptr==$c.ptr')
 	C.glfwSetWindowUserPointer(cwindow, c.ptr)
 	window := &Window {
 		data: cwindow,