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-rw-r--r--src/object_cmd.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/object_cmd.cpp b/src/object_cmd.cpp
index 44b221457..32618d9ff 100644
--- a/src/object_cmd.cpp
+++ b/src/object_cmd.cpp
@@ -93,7 +93,10 @@ void BuildObject(ObjectType type, TileIndex tile, CompanyID owner, Town *town, u
if (HasBit(spec->callback_mask, CBM_OBJ_COLOUR)) {
uint16 res = GetObjectCallback(CBID_OBJECT_COLOUR, o->colour, 0, spec, o, tile);
- if (res != CALLBACK_FAILED) o->colour = GB(res, 0, 8);
+ if (res != CALLBACK_FAILED) {
+ if (res >= 0x100) ErrorUnknownCallbackResult(spec->grf_prop.grffile->grfid, CBID_OBJECT_COLOUR, res);
+ o->colour = GB(res, 0, 8);
+ }
}
assert(o->town != NULL);