diff --git a/OSBindings/Mac/Clock Signal/Info.plist b/OSBindings/Mac/Clock Signal/Info.plist
index 1025bbc5f..de015839a 100644
--- a/OSBindings/Mac/Clock Signal/Info.plist	
+++ b/OSBindings/Mac/Clock Signal/Info.plist	
@@ -39,7 +39,10 @@
 			<key>CFBundleTypeRole</key>
 			<string>Viewer</string>
 			<key>LSItemContentTypes</key>
-			<array/>
+			<array>
+				<string>org.akop.cocoamsx.filetype.cartridge</string>
+				<string>com.clocksignal.rom</string>
+			</array>
 			<key>LSTypeIsPackage</key>
 			<integer>0</integer>
 			<key>NSDocumentClass</key>
@@ -262,6 +265,11 @@
 			<string>$(PRODUCT_MODULE_NAME).MachineDocument</string>
 		</dict>
 		<dict>
+			<key>LSItemContentTypes</key>
+			<array>
+				<string>org.akop.cocoamsx.filetype.cassette</string>
+				<string>com.clocksignal.cas</string>
+			</array>
 			<key>CFBundleTypeExtensions</key>
 			<array>
 				<string>cas</string>
@@ -297,6 +305,8 @@
 	<string>????</string>
 	<key>CFBundleVersion</key>
 	<string>1</string>
+	<key>LSApplicationCategoryType</key>
+	<string></string>
 	<key>LSMinimumSystemVersion</key>
 	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
 	<key>NSHumanReadableCopyright</key>