diff --git a/docking-api/src/module-info.java b/docking-api/src/module-info.java
index 03c6a3e5..8483f30c 100644
--- a/docking-api/src/module-info.java
+++ b/docking-api/src/module-info.java
@@ -10,8 +10,10 @@
 	exports ModernDocking.exception;
 	exports ModernDocking.layouts;
 	exports ModernDocking.persist;
- exports ModernDocking.settings;
+    exports ModernDocking.settings;
 	exports ModernDocking.ui;
     exports ModernDocking.api;
-	exports ModernDocking.internal;
+
+	// export our internal package only to our other extension modules
+	exports ModernDocking.internal to modern_docking.ui_ext, modern_docking.single_app, modern_docking.multi_app;
 }
\ No newline at end of file