1 files changed, 2 insertions, 0 deletions
diff --git a/crawl-ref/source/mapdef.h b/crawl-ref/source/mapdef.h
index d364553a9a..9d2e7e2b57 100644
--- a/crawl-ref/source/mapdef.h
+++ b/crawl-ref/source/mapdef.h
@@ -581,6 +581,8 @@ public:
 
     map_def         *original;
 
+    unsigned char   rock_colour, floor_colour;
+
 private:
     // This map has been loaded from an index, and not fully realised.
     bool            index_only;