Toggle GuiTexture

Hello,

I have been working an an mute/unmute button in the game. The problem is that it does not toggle correctly when pressed. When i press it apparenty it gets togggled both on and off at the same time, leaving the same texture. I have 2 textures for the button, but only the on one appears.

 Rect position = new Rect(native_width-175,90,125,125);
             GUI.DrawTexture(position , musicTextureToggle);
             if (GUI.Button(position , "", new GUIStyle()))
             {
                 if (musicOn==1)
                 {
                     musicTextureToggle = musicTextureOff;
                     musicOn = 0;
                     PlayerPrefs.SetInt("isMusic",musicOn);
                     Debug.Log("mute");
                 }
 
                 if (musicOn==0)
                 {
                     musicTextureToggle = musicTexture;
                     musicOn = 1;
                     PlayerPrefs.SetInt("isMusic",musicOn);
                     Debug.Log("unmute");
                 }
                 
             }