diff --git a/demos/Lazarus_Mac/ExternalPumpBrowser/ExternalPumpBrowser.lpi b/demos/Lazarus_Mac/ExternalPumpBrowser/ExternalPumpBrowser.lpi
index a72ab281..4d0bf509 100644
--- a/demos/Lazarus_Mac/ExternalPumpBrowser/ExternalPumpBrowser.lpi
+++ b/demos/Lazarus_Mac/ExternalPumpBrowser/ExternalPumpBrowser.lpi
@@ -9,6 +9,7 @@
       <SessionStorage Value="InProjectDir"/>
       <Title Value="External Pump Browser"/>
       <Scaled Value="True"/>
+      <NSPrincipalClass Value="TCrCocoaApplication"/>
       <ResourceType Value="res"/>
       <UseXPManifest Value="True"/>
       <XPManifest>
diff --git a/demos/Lazarus_any_OS/BrowserWindow/BrowserWindow.lpi b/demos/Lazarus_any_OS/BrowserWindow/BrowserWindow.lpi
index fb1335c4..8d1dc50c 100644
--- a/demos/Lazarus_any_OS/BrowserWindow/BrowserWindow.lpi
+++ b/demos/Lazarus_any_OS/BrowserWindow/BrowserWindow.lpi
@@ -9,6 +9,7 @@
       <SessionStorage Value="InProjectDir"/>
       <Title Value="BrowserWindow"/>
       <Scaled Value="True"/>
+      <NSPrincipalClass Value="TCrCocoaApplication"/>
       <ResourceType Value="res"/>
       <UseXPManifest Value="True"/>
       <XPManifest>
diff --git a/demos/Lazarus_any_OS/BrowserWindowDom/BrowserWindowDom.lpi b/demos/Lazarus_any_OS/BrowserWindowDom/BrowserWindowDom.lpi
index 3ec9b24d..260179ce 100644
--- a/demos/Lazarus_any_OS/BrowserWindowDom/BrowserWindowDom.lpi
+++ b/demos/Lazarus_any_OS/BrowserWindowDom/BrowserWindowDom.lpi
@@ -9,6 +9,7 @@
       <SessionStorage Value="InProjectDir"/>
       <Title Value="BrowserWindowDom"/>
       <Scaled Value="True"/>
+      <NSPrincipalClass Value="TCrCocoaApplication"/>
       <ResourceType Value="res"/>
       <UseXPManifest Value="True"/>
       <XPManifest>
diff --git a/demos/Lazarus_any_OS/BrowserWindowEx/BrowserWindowEx.lpi b/demos/Lazarus_any_OS/BrowserWindowEx/BrowserWindowEx.lpi
index cbecfe3f..167cffe2 100644
--- a/demos/Lazarus_any_OS/BrowserWindowEx/BrowserWindowEx.lpi
+++ b/demos/Lazarus_any_OS/BrowserWindowEx/BrowserWindowEx.lpi
@@ -9,6 +9,7 @@
       <SessionStorage Value="InProjectDir"/>
       <Title Value="BrowserWindowEx"/>
       <Scaled Value="True"/>
+      <NSPrincipalClass Value="TCrCocoaApplication"/>
       <ResourceType Value="res"/>
       <UseXPManifest Value="True"/>
       <XPManifest>
diff --git a/demos/Lazarus_any_OS/BrowserWindowOsrDom/BrowserWindowOsrDom.lpi b/demos/Lazarus_any_OS/BrowserWindowOsrDom/BrowserWindowOsrDom.lpi
index b7441b66..0c35bb14 100644
--- a/demos/Lazarus_any_OS/BrowserWindowOsrDom/BrowserWindowOsrDom.lpi
+++ b/demos/Lazarus_any_OS/BrowserWindowOsrDom/BrowserWindowOsrDom.lpi
@@ -9,6 +9,7 @@
       <SessionStorage Value="InProjectDir"/>
       <Title Value="BrowserWindowOsrDom"/>
       <Scaled Value="True"/>
+      <NSPrincipalClass Value="TCrCocoaApplication"/>
       <ResourceType Value="res"/>
       <UseXPManifest Value="True"/>
       <XPManifest>
diff --git a/demos/Lazarus_any_OS/ExternalPumpBrowser/ExternalPumpBrowser.lpi b/demos/Lazarus_any_OS/ExternalPumpBrowser/ExternalPumpBrowser.lpi
index 9ab148fa..712efad1 100644
--- a/demos/Lazarus_any_OS/ExternalPumpBrowser/ExternalPumpBrowser.lpi
+++ b/demos/Lazarus_any_OS/ExternalPumpBrowser/ExternalPumpBrowser.lpi
@@ -10,6 +10,7 @@
       <MainUnit Value="0"/>
       <Title Value="External Pump Browser"/>
       <Scaled Value="True"/>
+      <NSPrincipalClass Value="TCrCocoaApplication"/>
       <ResourceType Value="res"/>
       <UseXPManifest Value="True"/>
       <XPManifest>