diff --git a/stella/src/macosx/stella.xcodeproj/project.pbxproj b/stella/src/macosx/stella.xcodeproj/project.pbxproj
index c1877f8ec..15a8fb10f 100644
--- a/stella/src/macosx/stella.xcodeproj/project.pbxproj
+++ b/stella/src/macosx/stella.xcodeproj/project.pbxproj
@@ -293,6 +293,8 @@
 		DC8078EA0B4BD697005E9305 /* UIDialog.cxx in Sources */ = {isa = PBXBuildFile; fileRef = DC8078E60B4BD697005E9305 /* UIDialog.cxx */; };
 		DC8078EB0B4BD697005E9305 /* UIDialog.hxx in Headers */ = {isa = PBXBuildFile; fileRef = DC8078E70B4BD697005E9305 /* UIDialog.hxx */; };
 		DC8211550CAD74FF00511571 /* VideoModeList.hxx in Headers */ = {isa = PBXBuildFile; fileRef = DC8211540CAD74FF00511571 /* VideoModeList.hxx */; };
+		DCA23AE90D75B22500F77B33 /* CartX07.cxx in Sources */ = {isa = PBXBuildFile; fileRef = DCA23AE70D75B22500F77B33 /* CartX07.cxx */; };
+		DCA23AEA0D75B22500F77B33 /* CartX07.hxx in Headers */ = {isa = PBXBuildFile; fileRef = DCA23AE80D75B22500F77B33 /* CartX07.hxx */; };
 		DCD56D380B247D920092F9F8 /* Cart4A50.cxx in Sources */ = {isa = PBXBuildFile; fileRef = DCD56D360B247D920092F9F8 /* Cart4A50.cxx */; };
 		DCD56D390B247D920092F9F8 /* Cart4A50.hxx in Headers */ = {isa = PBXBuildFile; fileRef = DCD56D370B247D920092F9F8 /* Cart4A50.hxx */; };
 		DCD56D3C0B247DB40092F9F8 /* RectList.cxx in Sources */ = {isa = PBXBuildFile; fileRef = DCD56D3A0B247DB40092F9F8 /* RectList.cxx */; };
@@ -642,6 +644,8 @@
 		DC8078E60B4BD697005E9305 /* UIDialog.cxx */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.cpp.cpp; name = UIDialog.cxx; path = ../gui/UIDialog.cxx; sourceTree = SOURCE_ROOT; };
 		DC8078E70B4BD697005E9305 /* UIDialog.hxx */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.cpp.h; name = UIDialog.hxx; path = ../gui/UIDialog.hxx; sourceTree = SOURCE_ROOT; };
 		DC8211540CAD74FF00511571 /* VideoModeList.hxx */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.cpp.h; name = VideoModeList.hxx; path = ../common/VideoModeList.hxx; sourceTree = SOURCE_ROOT; };
+		DCA23AE70D75B22500F77B33 /* CartX07.cxx */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.cpp.cpp; name = CartX07.cxx; path = ../emucore/CartX07.cxx; sourceTree = SOURCE_ROOT; };
+		DCA23AE80D75B22500F77B33 /* CartX07.hxx */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.cpp.h; name = CartX07.hxx; path = ../emucore/CartX07.hxx; sourceTree = SOURCE_ROOT; };
 		DCD56D360B247D920092F9F8 /* Cart4A50.cxx */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.cpp.cpp; name = Cart4A50.cxx; path = ../emucore/Cart4A50.cxx; sourceTree = SOURCE_ROOT; };
 		DCD56D370B247D920092F9F8 /* Cart4A50.hxx */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.cpp.h; name = Cart4A50.hxx; path = ../emucore/Cart4A50.hxx; sourceTree = SOURCE_ROOT; };
 		DCD56D3A0B247DB40092F9F8 /* RectList.cxx */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.cpp.cpp; name = RectList.cxx; path = ../common/RectList.cxx; sourceTree = SOURCE_ROOT; };
@@ -847,6 +851,8 @@
 		2D6050CC0898776500C6DE89 /* emucore */ = {
 			isa = PBXGroup;
 			children = (
+				DCA23AE70D75B22500F77B33 /* CartX07.cxx */,
+				DCA23AE80D75B22500F77B33 /* CartX07.hxx */,
 				DC0984830D3985160073C852 /* CartSB.cxx */,
 				DC0984840D3985160073C852 /* CartSB.hxx */,
 				DC0984790D3983A80073C852 /* TrackBall22.cxx */,
@@ -1267,6 +1273,7 @@
 				DC8211550CAD74FF00511571 /* VideoModeList.hxx in Headers */,
 				DC09847C0D3983A80073C852 /* TrackBall22.hxx in Headers */,
 				DC0984860D3985160073C852 /* CartSB.hxx in Headers */,
+				DCA23AEA0D75B22500F77B33 /* CartX07.hxx in Headers */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -1305,7 +1312,6 @@
 		29B97313FDCFA39411CA2CEA /* Project object */ = {
 			isa = PBXProject;
 			buildConfigurationList = 2D91752109BA903B0026E9FF /* Build configuration list for PBXProject "stella" */;
-			compatibilityVersion = "Xcode 2.4";
 			hasScannedForEncodings = 1;
 			mainGroup = 29B97314FDCFA39411CA2CEA /* «PROJECTNAMEASXML» */;
 			projectDirPath = "";
@@ -1504,6 +1510,7 @@
 				DC07A3C80CAD738A009B4BC9 /* StateManager.cxx in Sources */,
 				DC09847B0D3983A80073C852 /* TrackBall22.cxx in Sources */,
 				DC0984850D3985160073C852 /* CartSB.cxx in Sources */,
+				DCA23AE90D75B22500F77B33 /* CartX07.cxx in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};