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-rw-r--r--src/newgrf_spritegroup.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/newgrf_spritegroup.cpp b/src/newgrf_spritegroup.cpp
index db23fb708..7629084ef 100644
--- a/src/newgrf_spritegroup.cpp
+++ b/src/newgrf_spritegroup.cpp
@@ -81,7 +81,7 @@ static inline uint32 GetVariable(const ResolverObject *object, byte variable, by
case 0x10: return object->callback_param1;
case 0x11: return 0;
case 0x18: return object->callback_param2;
- case 0x1A: return (uint32)-1;
+ case 0x1A: return UINT_MAX;
case 0x1B: return GB(_display_opt, 0, 6);
case 0x1C: return object->last_value;
case 0x20: return _opt.landscape == LT_HILLY ? _opt.snow_line : 0xFF;