diff --git a/components/style/binding_tools/regen.py b/components/style/binding_tools/regen.py
index 53ade1bf1e7..6fcbf25b9c9 100755
--- a/components/style/binding_tools/regen.py
+++ b/components/style/binding_tools/regen.py
@@ -256,6 +256,7 @@ COMPILATION_TARGETS = {
             "RawGeckoDocument",
             "RawGeckoElement",
             "RawGeckoNode",
+            "ThreadSafe.*Holder",
         ],
 
         # Types to just use from the `structs` target.