1 files changed, 6 insertions, 2 deletions

diff --git a/src/Blocks/BlockLeaves.h b/src/Blocks/BlockLeaves.h
index 5c9283979..2368eab7b 100644
--- a/src/Blocks/BlockLeaves.h
+++ b/src/Blocks/BlockLeaves.h
@@ -75,10 +75,14 @@ public:
 	}
 
 
-	virtual void OnNeighborChanged(cChunkInterface & a_ChunkInterface, int a_BlockX, int a_BlockY, int a_BlockZ) override
+	virtual void OnNeighborChanged(cChunkInterface & a_ChunkInterface, int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_WhichNeighbor) override
 	{
+		// Unset 0x8 bit so this block gets checked for decay:
 		NIBBLETYPE Meta = a_ChunkInterface.GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ);
-		a_ChunkInterface.SetBlockMeta(a_BlockX, a_BlockY, a_BlockZ, Meta & 0x7);  // Unset 0x8 bit so it gets checked for decay
+		if ((Meta & 0x08) != 0)
+		{
+			a_ChunkInterface.SetBlockMeta(a_BlockX, a_BlockY, a_BlockZ, Meta & 0x7);
+		}
 	}