diff --git a/Source/Core/Core/Core.vcproj b/Source/Core/Core/Core.vcproj
index da39230861..1ccefc0c89 100644
--- a/Source/Core/Core/Core.vcproj
+++ b/Source/Core/Core/Core.vcproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="Windows-1252"?>
 <VisualStudioProject
 	ProjectType="Visual C++"
-	Version="9,00"
+	Version="9.00"
 	Name="Core"
 	ProjectGUID="{F0B874CB-4476-4199-9315-8343D05AE684}"
 	RootNamespace="Core"
@@ -655,14 +655,6 @@
 				RelativePath=".\Src\Hw\CPU.h"
 				>
 			</File>
-			<File
-				RelativePath=".\Src\HW\GBAPipe.cpp"
-				>
-			</File>
-			<File
-				RelativePath=".\Src\HW\GBAPipe.h"
-				>
-			</File>
 			<File
 				RelativePath=".\Src\Hw\HW.cpp"
 				>
@@ -766,6 +758,14 @@
 			<Filter
 				Name="SI - Serial Interface"
 				>
+				<File
+					RelativePath=".\Src\HW\GBAPipe.cpp"
+					>
+				</File>
+				<File
+					RelativePath=".\Src\HW\GBAPipe.h"
+					>
+				</File>
 				<File
 					RelativePath=".\Src\HW\SI.cpp"
 					>
diff --git a/Source/Core/Core/Src/HW/GBAPipe.cpp b/Source/Core/Core/Src/HW/GBAPipe.cpp
index fad046b8e9..a45520f1f1 100644
--- a/Source/Core/Core/Src/HW/GBAPipe.cpp
+++ b/Source/Core/Core/Src/HW/GBAPipe.cpp
@@ -167,8 +167,8 @@ namespace GBAPipe
 	void StartServer() { }
 	void ConnectAsClient() { }
 	void Stop() { }
-	void Read(u32& data){}
-	void Write(u32 data){}
+	void Read(u8& data) { }
+	void Write(u8 data) { }
 	bool IsEnabled() { return false; }
 	bool IsServer() { return false; }
 }
diff --git a/Source/Core/Core/Src/HW/GBAPipe.h b/Source/Core/Core/Src/HW/GBAPipe.h
index 18d040683f..791208a7a0 100644
--- a/Source/Core/Core/Src/HW/GBAPipe.h
+++ b/Source/Core/Core/Src/HW/GBAPipe.h
@@ -19,8 +19,8 @@
 //  comparing them to each other.
 //
 
-#ifndef _CPUCOMPARE_H
-#define _CPUCOMPARE_H
+#ifndef _GBAPIPE_H
+#define _GBAPIPE_H
 
 #include "Common.h"