--- cl_console.c	(revision 1933)
+++ cl_console.c	(working copy)
@@ -443,7 +443,7 @@
 			break;
 		default:	// display character and advance
 			y = con.current % con.totallines;
-			con.text[y*con.linewidth+con.x] = (color << 8) | c;
+			con.text[y*con.linewidth+con.x] = (color << 8) | (c & 255);
 			con.x++;
 			if(con.x >= con.linewidth)
 				Con_Linefeed(skipnotify);