diff --git a/src/variables.h b/src/variables.h
--- a/src/variables.h
+++ b/src/variables.h
@@ -36,8 +36,6 @@ VARDEF byte _trees_tick_ctr;
 /* NOSAVE: Used in palette animations only, not really important. */
 VARDEF int _palette_animation_counter;
 
-
-VARDEF uint32 _frame_counter;
 VARDEF uint32 _realtime_tick;
 
 VARDEF bool _is_old_ai_company; // current company is an oldAI company? (enables a lot of cheats..)