diff --git a/manifest.json b/manifest.json
index 5020473..1dac2f4 100644
--- a/manifest.json
+++ b/manifest.json
@@ -327,7 +327,9 @@
       ],
       "matches":[
         "*://*/*.h",
-        "*://*/*.h?*"
+        "*://*/*.h?*",
+        "*://*/*.hpp",
+        "*://*/*.hpp?*"
       ],
       "run_at":"document_end"
     },