--- /build.xml
+++ /build.xml
@@ -1134,6 +1134,12 @@
       <arg value="${javaHome_macosx_arm64}/legal"/>
       <arg value="install/macosx/SweetHome3D-${version}/Sweet Home 3D.app/Contents/runtime/Contents/Home"/>
     </exec>
+    <!-- Fix permissions -->
+    <exec executable="chmod" failonerror="yes">
+      <arg value="-R"/>
+      <arg value="u+w"/>
+      <arg value="install/macosx/SweetHome3D-${version}/Sweet Home 3D.app/Contents/runtime/Contents/Home/legal"/>
+    </exec>
     <!-- Remove legal files not exported by jpackage -->
     <delete dir="install/macosx/SweetHome3D-${version}/Sweet Home 3D.app/Contents/runtime/Contents/Home/legal/jdk.jcmd"/>
     <delete dir="install/macosx/SweetHome3D-${version}/Sweet Home 3D.app/Contents/runtime/Contents/Home/legal/jdk.internal.vm.compiler"/>