1 files changed, 1 insertions, 1 deletions

diff --git a/server/test/Thermoprint/Server/QueueSpec.hs b/server/test/Thermoprint/Server/QueueSpec.hs
index fd45e1b..c39083a 100644
--- a/server/test/Thermoprint/Server/QueueSpec.hs
+++ b/server/test/Thermoprint/Server/QueueSpec.hs
@@ -23,7 +23,7 @@ instance Arbitrary QueueEntry where
   arbitrary = QueueEntry <$> arbitrary <*> arbitrary
 
 instance Arbitrary PrintingError where
-  arbitrary = oneof [ return UnknownError
+  arbitrary = oneof [ return (IOError "dummy")
                     ]
 
 instance Arbitrary JobId where