diff --git a/chiasma-test.cabal b/chiasma-test.cabal
--- a/chiasma-test.cabal
+++ b/chiasma-test.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           chiasma-test
-version:        0.12.2.0
+version:        0.12.3.0
 synopsis:       Testing tools for chiasma
 description:    See https://hackage.haskell.org/package/chiasma-test/docs/Chiasma-Test.html
 category:       Terminal
diff --git a/integration/Chiasma/Test/Util.hs b/integration/Chiasma/Test/Util.hs
--- a/integration/Chiasma/Test/Util.hs
+++ b/integration/Chiasma/Test/Util.hs
@@ -2,17 +2,12 @@
 
 import Hedgehog (property, test, withTests)
 import Polysemy.Test (UnitTest)
-import qualified System.Environment as Environment
 import Test.Tasty (TestName, TestTree)
 import Test.Tasty.Hedgehog (testProperty)
 
-checkEnv :: UnitTest -> UnitTest
-checkEnv t =
-  maybe unit (const t) =<< liftIO (Environment.lookupEnv "DISPLAY")
-
 integrationTest ::
   TestName ->
   UnitTest ->
   TestTree
 integrationTest desc =
-  testProperty desc . withTests 1 . property . test . checkEnv
+  testProperty desc . withTests 1 . property . test
diff --git a/lib/Chiasma/Test/Tmux.hs b/lib/Chiasma/Test/Tmux.hs
--- a/lib/Chiasma/Test/Tmux.hs
+++ b/lib/Chiasma/Test/Tmux.hs
@@ -56,14 +56,15 @@
 createTmuxConf ::
   Member Test r =>
   Path Abs File ->
+  Path Abs File ->
   [Text] ->
   Sem r (Path Abs File)
-createTmuxConf wait content = do
+createTmuxConf bash wait content = do
   bashrc <- Test.tempFile bashrcContent [relfile|bashrc|]
   Test.tempFile (defaultContent bashrc ++ content ++ initCommands) [relfile|tmux.conf|]
   where
     defaultContent rc =
-      [[exon|set -g default-command '/usr/bin/env bash --noprofile --rcfile #{pathText rc}'|]]
+      [[exon|set -g default-command '#{pathText bash} --noprofile --rcfile #{pathText rc}'|]]
     initCommands =
       [
         [exon|run-shell -b 'touch #{pathText wait}'|]
@@ -72,11 +73,12 @@
 testTmuxProcessConfig ::
   Members [Pty, Test, Embed IO] r =>
   Path Abs File ->
+  Path Abs File ->
   TmuxTestConfig ->
   Path Abs File ->
   Sem r (ProcessConfig () () ())
-testTmuxProcessConfig wait (TmuxTestConfig {..}) socket = do
-  confFile <- createTmuxConf wait conf
+testTmuxProcessConfig bash wait (TmuxTestConfig {..}) socket = do
+  confFile <- createTmuxConf bash wait conf
   Pty.resize width height
   handle <- Pty.handle
   let
@@ -154,8 +156,9 @@
   let socket = tempDir </> [relfile|tmux_socket|]
   let wait = tempDir </> [relfile|wait|]
   exe <- fromEither =<< resolveExecutable [relfile|tmux|] Nothing
+  bash <- fromEither =<< resolveExecutable [relfile|bash|] Nothing
   interpretPty $ resumeHoistError @_ @(Scoped_ _) show $ withPty do
-    pc <- testTmuxProcessConfig wait tConf socket
+    pc <- testTmuxProcessConfig bash wait tConf socket
     interpretSystemProcessNativeOpaqueSingle pc $ runReader (TmuxNative exe (Just socket)) do
       void $ Race.timeout (throw "tmux didn't start") (Seconds 3) (waitForFile wait)
       interpretCodecPanes $ interpretCodecTmuxCommand $ interpretTmuxNative $ restop @TmuxError do