diff --git a/claudetool/testdata/empty_testdir_add_file.txtar b/claudetool/testdata/empty_testdir_add_file.txtar
index 7c2be2d..6b6a1bb 100644
--- a/claudetool/testdata/empty_testdir_add_file.txtar
+++ b/claudetool/testdata/empty_testdir_add_file.txtar
@@ -31,7 +31,7 @@
 -- .run_test --
 # Errors
 
-Test regressions detected between initial commit (cdc9ec6dfb8669c11d8aa0df49c72112627784dc) and HEAD:
+Test regressions detected between initial commit (INITIAL_COMMIT_HASH) and HEAD:
 
 1: sketch.dev.TestEmptyTestdata: Was passing, now failing