diff --git a/Quake/cl_main.c b/Quake/cl_main.c
index bee4d5ea..d3c0beda 100644
--- a/Quake/cl_main.c
+++ b/Quake/cl_main.c
@@ -153,7 +153,7 @@ CL_EstablishConnection
 Host should be either "local" or a net address to be passed on
 =====================
 */
-void CL_EstablishConnection (char *host)
+void CL_EstablishConnection (const char *host)
 {
 	if (cls.state == ca_dedicated)
 		return;
diff --git a/Quake/client.h b/Quake/client.h
index f5be0bbc..da251c18 100644
--- a/Quake/client.h
+++ b/Quake/client.h
@@ -296,7 +296,7 @@ void	CL_DecayLights (void);
 
 void CL_Init (void);
 
-void CL_EstablishConnection (char *host);
+void CL_EstablishConnection (const char *host);
 void CL_Signon1 (void);
 void CL_Signon2 (void);
 void CL_Signon3 (void);
diff --git a/Quake/gl_vidsdl.c b/Quake/gl_vidsdl.c
index bb82fe43..38577ace 100644
--- a/Quake/gl_vidsdl.c
+++ b/Quake/gl_vidsdl.c
@@ -1182,6 +1182,7 @@ VID_Init
 */
 void	VID_Init (void)
 {
+	static char vid_center[] = "SDL_VIDEO_CENTERED=center";
 	const SDL_VideoInfo *info;
 	int		i, existingmode;
 	int		basenummodes, width, height, bpp, findbpp, done;
@@ -1207,7 +1208,7 @@ void	VID_Init (void)
 	if (SDL_InitSubSystem(SDL_INIT_VIDEO) == -1)
 		Sys_Error("Could not initialize SDL Video");
 
-	SDL_putenv("SDL_VIDEO_CENTERED=center");
+	SDL_putenv (vid_center);
 
 	VID_InitDIB();
 	basenummodes = nummodes = 1;