diff --git a/tests/T2120.stdout b/tests/T2120.stdout
index 89c73bc934197af70cf445a95b4da228f103f675..4ed3067408d7aae2d513a0d748b3068457a9e9db 100644
--- a/tests/T2120.stdout
+++ b/tests/T2120.stdout
@@ -1,6 +1,6 @@
 Ix{Int}.index: Index (5) out of range ((1,4))
-CallStack:
+CallStack (from ImplicitParams):
   error, called at libraries/base/GHC/Arr.hs:176:5 in base:GHC.Arr
 Error in array index
-CallStack:
+CallStack (from ImplicitParams):
   error, called at libraries/base/GHC/Arr.hs:182:22 in base:GHC.Arr