1 files changed, 1 insertions, 1 deletions
diff --git a/src/mapblock.h b/src/mapblock.h
index 76ba94c34..3c0ae9cd7 100644
--- a/src/mapblock.h
+++ b/src/mapblock.h
@@ -140,7 +140,7 @@ public:
 	}
 	void unDummify()
 	{
-		assert(isDummy());
+		assert(isDummy()); // Pre-condition
 		reallocate();
 	}