diff -urN wesnoth-1.10.5/src/terrain_translation.cpp wesnoth-1.10.5.orig/src/terrain_translation.cpp
--- wesnoth-1.10.5/src/terrain_translation.cpp	2012-01-07 03:35:17.000000000 +0100
+++ wesnoth-1.10.5.orig/src/terrain_translation.cpp	2012-11-29 21:24:05.702100978 +0100
@@ -800,6 +800,11 @@
 	tcode[1] = ((terrain.base & 0x00FF0000) >> 16);
 	tcode[2] = ((terrain.base & 0x0000FF00) >> 8);
 	tcode[3] =  (terrain.base & 0x000000FF);
+	tcode[4] = 0;
+	tcode[5] = 0;
+	tcode[6] = 0;
+	tcode[7] = 0;
+	tcode[8] = 0;
 
 	if(terrain.overlay != NO_LAYER) {
 		tcode[4] = '^'; //the layer separator