diff --git a/samples/minimal/Info_cocoa.plist b/samples/minimal/Info_cocoa.plist
index 1ac0d1604c..db1f988e5f 100644
--- a/samples/minimal/Info_cocoa.plist
+++ b/samples/minimal/Info_cocoa.plist
@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>NSPrincipalClass</key>
+	<string>wxNSApplication</string>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>English</string>
 	<key>CFBundleExecutable</key>