diff --git a/src/World.cpp b/src/World.cpp
index ca72d2e20..6c9ea7453 100644
--- a/src/World.cpp
+++ b/src/World.cpp
@@ -2649,12 +2649,14 @@ bool cWorld::SetCommandBlockCommand(int a_BlockX, int a_BlockY, int a_BlockZ, co
 
 bool cWorld::IsTrapdoorOpen(int a_BlockX, int a_BlockY, int a_BlockZ)
 {
-	if (GetBlock(a_BlockX, a_BlockY, a_BlockZ) != E_BLOCK_TRAPDOOR)
+	BLOCKTYPE Block;
+	NIBBLETYPE Meta;
+	GetBlockTypeMeta(a_BlockX, a_BlockY, a_BlockZ, Block, Meta);
+	if (Block != E_BLOCK_TRAPDOOR)
 	{
 		return false;
 	}
 	
-	NIBBLETYPE Meta = GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ);
 	return (Meta & 0x4) > 0;
 }
 
@@ -2664,12 +2666,14 @@ bool cWorld::IsTrapdoorOpen(int a_BlockX, int a_BlockY, int a_BlockZ)
 
 bool cWorld::SetTrapdoorOpen(int a_BlockX, int a_BlockY, int a_BlockZ, bool a_Open)
 {
-	if (GetBlock(a_BlockX, a_BlockY, a_BlockZ) != E_BLOCK_TRAPDOOR)
+	BLOCKTYPE Block;
+	NIBBLETYPE Meta;
+	GetBlockTypeMeta(a_BlockX, a_BlockY, a_BlockZ, Block, Meta);
+	if (Block != E_BLOCK_TRAPDOOR)
 	{
 		return false;
 	}
 	
-	NIBBLETYPE Meta = GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ);
 	bool IsOpen = (Meta & 0x4) > 0;
 	if (a_Open != IsOpen)
 	{
diff --git a/src/World.h b/src/World.h
index ec6805dcf..25b42888c 100644
--- a/src/World.h
+++ b/src/World.h
@@ -342,10 +342,10 @@ public:
 	/** Sets the command block command. Returns true if command changed. */
 	bool SetCommandBlockCommand(int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Command);	// tolua_export
 
-	/** Is the trapdoor open? */
+	/** Is the trapdoor open? Returns false if there is no trapdoor at the specified coords. */
 	bool IsTrapdoorOpen(int a_BlockX, int a_BlockY, int a_BlockZ);                                      // tolua_export
 
-	/** Set the state of a trapdoor */
+	/** Set the state of a trapdoor. Returns true if the trapdoor was update, false if there was no trapdoor at those coords. */
 	bool SetTrapdoorOpen(int a_BlockX, int a_BlockY, int a_BlockZ, bool a_Open);                        // tolua_export
 
 	/** Regenerate the given chunk: */