diff --git a/code/sdl/sdl_glimp.c b/code/sdl/sdl_glimp.c
index 663fd098..ea2268fb 100644
--- a/code/sdl/sdl_glimp.c
+++ b/code/sdl/sdl_glimp.c
@@ -73,6 +73,7 @@ static const SDL_VideoInfo *videoInfo = NULL;
 
 cvar_t *r_allowSoftwareGL; // Don't abort out if a hardware visual can't be obtained
 cvar_t *r_allowResize; // make window resizable
+cvar_t *r_centerWindow;
 cvar_t *r_sdlDriver;
 
 void (APIENTRYP qglActiveTextureARB) (GLenum texture);
@@ -670,8 +671,9 @@ void GLimp_Init( void )
 	r_allowSoftwareGL = ri.Cvar_Get( "r_allowSoftwareGL", "0", CVAR_LATCH );
 	r_sdlDriver = ri.Cvar_Get( "r_sdlDriver", "", CVAR_ROM );
 	r_allowResize = ri.Cvar_Get( "r_allowResize", "0", CVAR_ARCHIVE );
+	r_centerWindow = ri.Cvar_Get( "r_centerWindow", "0", CVAR_ARCHIVE );
 
-	Sys_SetEnv("SDL_VIDEO_CENTERED", "1");
+	Sys_SetEnv( "SDL_VIDEO_CENTERED", r_centerWindow->integer ? "1" : "" );
 
 	Sys_GLimpInit( );