1 files changed, 1 insertions, 0 deletions
diff --git a/command.h b/command.h
index c2aad5a2f..c6c80756a 100644
--- a/command.h
+++ b/command.h
@@ -182,6 +182,7 @@ enum {
 int32 DoCommand(int x, int y, uint32 p1, uint32 p2, uint32 flags, uint procc);
 int32 DoCommandByTile(TileIndex tile, uint32 p1, uint32 p2, uint32 flags, uint procc);
 
+bool IsValidCommand(int cmd);
 int32 GetAvailableMoneyForCommand();
 
 #endif /* COMMAND_H */