2 files changed, 10 insertions, 0 deletions
diff --git a/testsuite/tests/showIface/DocsInHiFile.hs b/testsuite/tests/showIface/DocsInHiFile.hs
index 26156722ac..e753eb5e42 100644
--- a/testsuite/tests/showIface/DocsInHiFile.hs
+++ b/testsuite/tests/showIface/DocsInHiFile.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE TypeFamilies #-}
 {-| `elem`, 'print',
 `Unknown',
 '<>', ':=:', 'Bool'
@@ -35,3 +36,8 @@ class P f where
 -- | Another datatype...
 data D'
 -- ^ ...with two docstrings.
+
+-- | A type family
+type family F a
+-- | A type family instance
+type instance F Int = Bool
diff --git a/testsuite/tests/showIface/DocsInHiFile1.stdout b/testsuite/tests/showIface/DocsInHiFile1.stdout
index 83d21f1953..fa642627d6 100644
--- a/testsuite/tests/showIface/DocsInHiFile1.stdout
+++ b/testsuite/tests/showIface/DocsInHiFile1.stdout
@@ -22,6 +22,10 @@ declaration docs:
     " Another datatype...
 
  ...with two docstrings."
+  D:R:FInt:
+    " A type family instance"
+  F:
+    " A type family"
 arg docs:
   add:
     0: