diff --git a/src/Blocks/BlockRail.h b/src/Blocks/BlockRail.h
index 55cadfa48..f13e987b7 100644
--- a/src/Blocks/BlockRail.h
+++ b/src/Blocks/BlockRail.h
@@ -204,7 +204,7 @@ public:
 
 	bool IsUnstable(cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ)
 	{
-		if (a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ) != E_BLOCK_RAIL)
+		if (!IsBlockRail(a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ)))
 		{
 			return false;
 		}
@@ -339,11 +339,11 @@ public:
 	{
 		AddFaceDirection(a_BlockX, a_BlockY, a_BlockZ, a_BlockFace, false);
 		NIBBLETYPE Meta;
-		if (a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ) != E_BLOCK_RAIL)
+		if (!IsBlockRail(a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ)))
 		{
-			if ((a_World->GetBlock(a_BlockX, a_BlockY + 1, a_BlockZ) != E_BLOCK_RAIL) || (a_Pure != E_PURE_UPDOWN))
+			if (!IsBlockRail(a_World->GetBlock(a_BlockX, a_BlockY + 1, a_BlockZ)) || (a_Pure != E_PURE_UPDOWN))
 			{
-				if ((a_World->GetBlock(a_BlockX, a_BlockY - 1, a_BlockZ) != E_BLOCK_RAIL) || (a_Pure == E_PURE_NONE))
+				if (!IsBlockRail(a_World->GetBlock(a_BlockX, a_BlockY - 1, a_BlockZ)) || (a_Pure == E_PURE_NONE))
 				{
 					return true;
 				}
diff --git a/src/Defines.h b/src/Defines.h
index 7a86f499e..298180fb1 100644
--- a/src/Defines.h
+++ b/src/Defines.h
@@ -282,6 +282,24 @@ inline bool IsBlockLiquid(BLOCKTYPE a_BlockType)
 
 
 
+inline bool IsBlockRail(BLOCKTYPE a_BlockType)
+{
+	switch (a_BlockType)
+	{
+		case E_BLOCK_RAIL:
+		case E_BLOCK_ACTIVATOR_RAIL:
+		case E_BLOCK_DETECTOR_RAIL:
+		case E_BLOCK_POWERED_RAIL:
+		{
+			return true;
+		}
+		default: return false;
+	}
+}
+
+
+
+
 
 inline bool IsBlockTypeOfDirt(BLOCKTYPE a_BlockType)
 {
diff --git a/src/Entities/Minecart.h b/src/Entities/Minecart.h
index a4ecb33ad..87f785538 100644
--- a/src/Entities/Minecart.h
+++ b/src/Entities/Minecart.h
@@ -15,20 +15,6 @@
 
 
 
-inline bool IsBlockRail(BLOCKTYPE a_BlockType)
-	{
-		return (
-			(a_BlockType == E_BLOCK_RAIL) ||
-			(a_BlockType == E_BLOCK_ACTIVATOR_RAIL) ||
-			(a_BlockType == E_BLOCK_DETECTOR_RAIL) ||
-			(a_BlockType == E_BLOCK_POWERED_RAIL)
-			) ;
-	}
-
-
-
-
-
 class cMinecart :
 	public cEntity
 {