diff --git a/configuration.h b/configuration.h
index 5e15e05f64..3afa6fdc4b 100644
--- a/configuration.h
+++ b/configuration.h
@@ -95,7 +95,7 @@ typedef struct settings
       bool video_statistics_show;
       bool video_framecount_show;
       bool video_msg_bgcolor_enable;
-	  bool crt_switch_resolution;  
+      bool crt_switch_resolution;  
 
       /* Audio */
       bool audio_enable;
@@ -334,7 +334,7 @@ typedef struct settings
       unsigned video_window_x;
       unsigned video_window_y;
       unsigned video_window_opacity;
-	  unsigned crt_switch_resolution_super;  
+      unsigned crt_switch_resolution_super;  
       unsigned video_monitor_index;
       unsigned video_fullscreen_x;
       unsigned video_fullscreen_y;