diff --git a/misc/Info.plist b/misc/Info.plist
index f7fff0a5f..3e9b9735b 100644
--- a/misc/Info.plist
+++ b/misc/Info.plist
@@ -73,7 +73,13 @@
 			<key>UTTypeTagSpecification</key>
 			<dict>
 				<key>public.filename-extension</key>
+				<array>
 				<string>titleblock</string>
+				</array>
+                <key>public.mime-type</key>
+                <array>
+					<string>application/x-qet-titleblock</string>
+                </array>
 			</dict>
 		</dict>
 		<dict>
@@ -88,7 +94,13 @@
 			<key>UTTypeTagSpecification</key>
 			<dict>
 				<key>public.filename-extension</key>
+				<array>
 				<string>elmt</string>
+				</array>
+                <key>public.mime-type</key>
+                <array>
+					<string>application/x-qet-element</string>
+                </array>
 			</dict>
 		</dict>
 		<dict>
@@ -103,7 +115,13 @@
 			<key>UTTypeTagSpecification</key>
 			<dict>
 				<key>public.filename-extension</key>
+				<array>
 				<string>qet</string>
+				</array>
+                <key>public.mime-type</key>
+                <array>
+					<string>application/x-qet-project</string>
+                </array>
 			</dict>
 		</dict>
 	</array>