diff --git a/stepmania/src/StepManiaXbox.vcproj b/stepmania/src/StepManiaXbox.vcproj
index a01f969294..3318a564e1 100644
--- a/stepmania/src/StepManiaXbox.vcproj
+++ b/stepmania/src/StepManiaXbox.vcproj
@@ -714,6 +714,12 @@ cl /Zl /nologo /c verstub.cpp /Fo$(IntDir)\
 			<File
 				RelativePath="Attack.h">
 			</File>
+			<File
+				RelativePath="AutoKeysounds.cpp">
+			</File>
+			<File
+				RelativePath="AutoKeysounds.h">
+			</File>
 			<File
 				RelativePath="BannerCache.cpp">
 			</File>
@@ -1908,6 +1914,12 @@ cl /Zl /nologo /c verstub.cpp /Fo$(IntDir)\
 			<File
 				RelativePath="RageSoundManager.h">
 			</File>
+			<File
+				RelativePath="RageSoundMixBuffer.cpp">
+			</File>
+			<File
+				RelativePath="RageSoundMixBuffer.h">
+			</File>
 			<File
 				RelativePath="RageSoundPosMap.cpp">
 			</File>
@@ -1917,6 +1929,12 @@ cl /Zl /nologo /c verstub.cpp /Fo$(IntDir)\
 			<File
 				RelativePath="RageSoundReader.h">
 			</File>
+			<File
+				RelativePath="RageSoundReader_Chain.cpp">
+			</File>
+			<File
+				RelativePath="RageSoundReader_Chain.h">
+			</File>
 			<File
 				RelativePath="RageSoundReader_FileReader.cpp">
 			</File>
@@ -1971,6 +1989,12 @@ cl /Zl /nologo /c verstub.cpp /Fo$(IntDir)\
 			<File
 				RelativePath="RageSoundResampler.h">
 			</File>
+			<File
+				RelativePath="RageSoundUtil.cpp">
+			</File>
+			<File
+				RelativePath="RageSoundUtil.h">
+			</File>
 			<File
 				RelativePath="RageSurface.cpp">
 			</File>