diff --git a/src/telugu/AllTel.gf b/src/telugu/AllTel.gf
index 88d7eb88..1cfd6375 100644
--- a/src/telugu/AllTel.gf
+++ b/src/telugu/AllTel.gf
@@ -1,3 +1,5 @@
 --# -path=.:../abstract:../common:../prelude
 
-concrete AllTel of AllTelAbs = LangTel ;
+concrete AllTel of AllTelAbs =
+  LangTel,
+  ExtendTel ;
diff --git a/src/telugu/AllTelAbs.gf b/src/telugu/AllTelAbs.gf
index 38e188ec..0f90b20a 100644
--- a/src/telugu/AllTelAbs.gf
+++ b/src/telugu/AllTelAbs.gf
@@ -1 +1,2 @@
-abstract AllTelAbs = Lang ;
+abstract AllTelAbs =
+  Lang, Extend ;