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-rw-r--r--src/newgrf_canal.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/newgrf_canal.cpp b/src/newgrf_canal.cpp
index 7295e5551..6b3c9b3d4 100644
--- a/src/newgrf_canal.cpp
+++ b/src/newgrf_canal.cpp
@@ -111,7 +111,7 @@ struct CanalResolverObject : public ResolverObject {
/* virtual */ const SpriteGroup *CanalResolverObject::ResolveReal(const RealSpriteGroup *group) const
{
- if (group->num_loaded == 0) return nullptr;
+ if (group->loaded.empty()) return nullptr;
return group->loaded[0];
}