diff --git a/ports/geckolib/gecko_bindings/tools/regen.py b/ports/geckolib/gecko_bindings/tools/regen.py
index 9c4acfdaa43..d2cf66a0f54 100755
--- a/ports/geckolib/gecko_bindings/tools/regen.py
+++ b/ports/geckolib/gecko_bindings/tools/regen.py
@@ -126,6 +126,9 @@ COMPILATION_TARGETS = {
             "nsMainThreadPtrHolder", "nscolor", "nsFont", "FontFamilyList",
             "FontFamilyType", "nsIAtom",
         ],
+        "void_types": [
+            "nsINode", "nsIDocument", "nsIPrincipal", "nsIURI",
+        ]
     }
 }