diff --git a/.gitignore b/.gitignore
index 7c2d3190..88d4074a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,3 +24,7 @@ cryptol-2.*
 /ICryptol/profile_cryptol/security/
 /ICryptol/profile_cryptol/startup/
 /bench*.xml
+
+# ignore test suite output
+/bin
+/output
diff --git a/tests/regression/check31.icry.stdout b/tests/regression/check31.icry.stdout
index ac016621..b9b59aa6 100644
--- a/tests/regression/check31.icry.stdout
+++ b/tests/regression/check31.icry.stdout
@@ -1,6 +1,5 @@
 Loading module Cryptol
 
-[error] IO error while loading file: ./check31.iso8859.cry:
-    ./check31.iso8859.cry: hGetContents: invalid argument (invalid byte sequence)
+[error] bad utf-8 encoding: ./check31.iso8859.cry
 Loading module Cryptol
 Loading module Fοο