diff --git a/src/gl/gl3device.cpp b/src/gl/gl3device.cpp
index 856527a5..f4b336e5 100644
--- a/src/gl/gl3device.cpp
+++ b/src/gl/gl3device.cpp
@@ -1156,7 +1156,7 @@ beginUpdate(Camera *cam)
 #ifdef LIBRW_SDL2
 		SDL_GetWindowSize(glGlobals.window, &w, &h);
 #else
-		glfwGetWindowSize(glGlobals.window, &w, &h);
+		glfwGetFramebufferSize(glGlobals.window, &w, &h);
 #endif
 	}else{
 		w = cam->frameBuffer->width;
@@ -1410,6 +1410,7 @@ startGLFW(void)
 	mode = &glGlobals.modes[glGlobals.currentMode];
 
 	glfwSetErrorCallback(glfwerr);
+	glfwWindowHint(GLFW_ALPHA_BITS, 0); // important e.g. on Wayland
 	glfwWindowHint(GLFW_RED_BITS, mode->mode.redBits);
 	glfwWindowHint(GLFW_GREEN_BITS, mode->mode.greenBits);
 	glfwWindowHint(GLFW_BLUE_BITS, mode->mode.blueBits);