diff --git a/testsuite/tests/th/T7910.hs b/testsuite/tests/th/T7910.hs
new file mode 100644
index 0000000000000000000000000000000000000000..d04436512d20d5a6ccbe7b8edae8974721d7ed54
--- /dev/null
+++ b/testsuite/tests/th/T7910.hs
@@ -0,0 +1,16 @@
+{-# LANGUAGE ConstraintKinds #-}
+{-# LANGUAGE TemplateHaskell #-}
+module Main where
+
+import Language.Haskell.TH
+import Language.Haskell.TH.Syntax
+
+class C a
+instance C Int
+
+type D a = C a
+
+main = print $(
+  do isCInst <- isInstance ''C [ConT ''Int]
+     isDInst <- isInstance ''D [ConT ''Int]
+     lift (isCInst,isDInst))
diff --git a/testsuite/tests/th/T7910.stdout b/testsuite/tests/th/T7910.stdout
new file mode 100644
index 0000000000000000000000000000000000000000..1fa0b54b36b8887d398d8c23a96d824bc1434eb7
--- /dev/null
+++ b/testsuite/tests/th/T7910.stdout
@@ -0,0 +1 @@
+(True,True)
diff --git a/testsuite/tests/th/all.T b/testsuite/tests/th/all.T
index 5ff833e890b198f9ad7f1bed17609d3908fea0de..ad1c4e97823c952baa70dfa11a93f9c8935d4cf8 100644
--- a/testsuite/tests/th/all.T
+++ b/testsuite/tests/th/all.T
@@ -273,4 +273,5 @@ test('T7532',
      ['T7532', '-v0 ' + config.ghc_th_way_flags])
 test('T2222', normal, compile, ['-v0'])
 test('T1849', normal, ghci_script, ['T1849.script'])
-test('T7681', normal, compile, ['-v0'])
\ No newline at end of file
+test('T7681', normal, compile, ['-v0'])
+test('T7910', normal, compile_and_run, ['-v0'])