diff --git a/classes.cpp b/classes.cpp
index 437f99a7..911a1210 100644
--- a/classes.cpp
+++ b/classes.cpp
@@ -649,6 +649,8 @@ enum eLand {
   #include "content.cpp"
   landtypes
   };
+
+extern color_t floorcolors[landtypes];
 #endif
 
 EX const landtype linf[landtypes] = {