1 files changed, 1 insertions, 1 deletions
diff --git a/src/mapgen.h b/src/mapgen.h
index f4bd659fb..2e917a3aa 100644
--- a/src/mapgen.h
+++ b/src/mapgen.h
@@ -45,7 +45,7 @@ class MapBlock;
 class ManualMapVoxelManipulator;
 class VoxelManipulator;
 class INodeDefManager;
-class BlockMakeData;
+struct BlockMakeData;
 class VoxelArea;
 
 struct MapgenParams {