diff --git a/Resources/Info.plist b/Resources/Info.plist
index 48d4f800..f1beb4f9 100644
--- a/Resources/Info.plist
+++ b/Resources/Info.plist
@@ -93,15 +93,27 @@
 			</array>
 		</dict>
 	</array>
-	<key>UTImportedTypeDeclarations</key>
+	<key>UTExportedTypeDeclarations</key>
 	<array>
 		<dict>
 			<key>UTTypeIdentifier</key>
 			<string>com.splittabbar.tabtransfer</string>
+			<key>UTTypeDescription</key>
+			<string>Bonsplit Tab Transfer</string>
+			<key>UTTypeConformsTo</key>
+			<array>
+				<string>public.data</string>
+			</array>
 		</dict>
 		<dict>
 			<key>UTTypeIdentifier</key>
 			<string>com.cmux.sidebar-tab-reorder</string>
+			<key>UTTypeDescription</key>
+			<string>cmux Sidebar Tab Reorder</string>
+			<key>UTTypeConformsTo</key>
+			<array>
+				<string>public.data</string>
+			</array>
 		</dict>
 	</array>
 	<key>NSAppTransportSecurity</key>
diff --git a/cmuxTests/CmuxWebViewKeyEquivalentTests.swift b/cmuxTests/CmuxWebViewKeyEquivalentTests.swift
index 501256ad..7eb7460f 100644
--- a/cmuxTests/CmuxWebViewKeyEquivalentTests.swift
+++ b/cmuxTests/CmuxWebViewKeyEquivalentTests.swift
@@ -11001,6 +11001,27 @@ final class InternalTabDragConfigurationTests: XCTestCase {
         )
     }
 }
+
+@MainActor
+final class InternalTabDragBundleDeclarationTests: XCTestCase {
+    private func exportedTypeIdentifiers(bundle: Bundle) -> Set<String> {
+        let declarations = (bundle.object(forInfoDictionaryKey: "UTExportedTypeDeclarations") as? [[String: Any]]) ?? []
+        return Set(declarations.compactMap { $0["UTTypeIdentifier"] as? String })
+    }
+
+    func testAppBundleExportsInternalDragTypes() {
+        let exported = exportedTypeIdentifiers(bundle: Bundle(for: AppDelegate.self))
+
+        XCTAssertTrue(
+            exported.contains("com.splittabbar.tabtransfer"),
+            "Expected app bundle to export bonsplit tab-transfer type, got \(exported)"
+        )
+        XCTAssertTrue(
+            exported.contains("com.cmux.sidebar-tab-reorder"),
+            "Expected app bundle to export sidebar tab-reorder type, got \(exported)"
+        )
+    }
+}
 #endif
 
 @MainActor