diff --git a/Templates/Empty/game/core/scripts/client/canvas.cs b/Templates/Empty/game/core/scripts/client/canvas.cs
index b3a906f46..3982b433d 100644
--- a/Templates/Empty/game/core/scripts/client/canvas.cs
+++ b/Templates/Empty/game/core/scripts/client/canvas.cs
@@ -32,8 +32,10 @@ function configureCanvas()
    if ($pref::Video::mode $= "")
       $pref::Video::mode = "800 600 false 32 60 0";
 
-   if($cliFullscreen !$="")
+   if($cliFullscreen !$="") {
       $pref::Video::mode = setWord($pref::Video::mode, $WORD::FULLSCREEN, $cliFullScreen);
+      $cliFullscreen = "";
+   }
 
    %resX = getWord($pref::Video::mode, $WORD::RES_X);
    %resY = getWord($pref::Video::mode, $WORD::RES_Y);
diff --git a/Templates/Full/game/core/scripts/client/canvas.cs b/Templates/Full/game/core/scripts/client/canvas.cs
index b3a906f46..cae9e16b6 100644
--- a/Templates/Full/game/core/scripts/client/canvas.cs
+++ b/Templates/Full/game/core/scripts/client/canvas.cs
@@ -32,8 +32,10 @@ function configureCanvas()
    if ($pref::Video::mode $= "")
       $pref::Video::mode = "800 600 false 32 60 0";
 
-   if($cliFullscreen !$="")
+   if($cliFullscreen !$= "") {
       $pref::Video::mode = setWord($pref::Video::mode, $WORD::FULLSCREEN, $cliFullScreen);
+      $cliFullscreen = "";
+   }
 
    %resX = getWord($pref::Video::mode, $WORD::RES_X);
    %resY = getWord($pref::Video::mode, $WORD::RES_Y);