3 files changed, 4 insertions, 4 deletions
diff --git a/src/Protocol/Protocol.h b/src/Protocol/Protocol.h
index 9d3cd77f2..cf3458040 100644
--- a/src/Protocol/Protocol.h
+++ b/src/Protocol/Protocol.h
@@ -440,7 +440,7 @@ public:
 	virtual void SendWholeInventory             (const cWindow    & a_Window) = 0;
 	virtual void SendWindowClose                (const cWindow    & a_Window) = 0;
 	virtual void SendWindowOpen                 (const cWindow & a_Window) = 0;
-	virtual void SendWindowProperty             (const cWindow & a_Window, short a_Property, short a_Value) = 0;
+	virtual void SendWindowProperty             (const cWindow & a_Window, size_t a_Property, short a_Value) = 0;
 
 	/** Returns the ServerID used for authentication through session.minecraft.net */
 	virtual AString GetAuthServerID(void) = 0;
diff --git a/src/Protocol/Protocol_1_8.cpp b/src/Protocol/Protocol_1_8.cpp
index c6b21fc3d..ae3137eb6 100644
--- a/src/Protocol/Protocol_1_8.cpp
+++ b/src/Protocol/Protocol_1_8.cpp
@@ -1694,13 +1694,13 @@ void cProtocol_1_8_0::SendWindowOpen(const cWindow & a_Window)
 
 
 
-void cProtocol_1_8_0::SendWindowProperty(const cWindow & a_Window, short a_Property, short a_Value)
+void cProtocol_1_8_0::SendWindowProperty(const cWindow & a_Window, size_t a_Property, short a_Value)
 {
 	ASSERT(m_State == 3);  // In game mode?
 
 	cPacketizer Pkt(*this, pktWindowProperty);
 	Pkt.WriteBEUInt8(static_cast<UInt8>(a_Window.GetWindowID()));
-	Pkt.WriteBEInt16(a_Property);
+	Pkt.WriteBEInt16(static_cast<Int16>(a_Property));
 	Pkt.WriteBEInt16(a_Value);
 }
 
diff --git a/src/Protocol/Protocol_1_8.h b/src/Protocol/Protocol_1_8.h
index ced7cf62a..44415758f 100644
--- a/src/Protocol/Protocol_1_8.h
+++ b/src/Protocol/Protocol_1_8.h
@@ -120,7 +120,7 @@ public:
 	virtual void SendWholeInventory             (const cWindow & a_Window) override;
 	virtual void SendWindowClose                (const cWindow & a_Window) override;
 	virtual void SendWindowOpen                 (const cWindow & a_Window) override;
-	virtual void SendWindowProperty             (const cWindow & a_Window, short a_Property, short a_Value) override;
+	virtual void SendWindowProperty             (const cWindow & a_Window, size_t a_Property, short a_Value) override;
 
 	virtual AString GetAuthServerID(void) override { return m_AuthServerID; }