diff --git a/src/tools/builtin.jam b/src/tools/builtin.jam
index e779c1eaa..f16010832 100644
--- a/src/tools/builtin.jam
+++ b/src/tools/builtin.jam
@@ -295,7 +295,7 @@ scanner.register c-scanner : include ;
 type.set-scanner CPP : c-scanner ;
 
 
-type.register H : h ;
+type.register H : h hpp ;
 type.register C : c ;
 
 # Generator for 'lib' target, which relays to generators for either