diff --git a/tests/functional2/lang/builtins.readDir/test_read_dir.py b/tests/functional2/lang/builtins.readDir/test_read_dir.py
index 4e0f50ee9..f87241fc8 100644
--- a/tests/functional2/lang/builtins.readDir/test_read_dir.py
+++ b/tests/functional2/lang/builtins.readDir/test_read_dir.py
@@ -23,6 +23,7 @@ from functional2.testlib.fixtures.snapshot import Snapshot
         },
         "in.nix": CopyFile("in.nix"),
         "out.exp": AssetSymlink("eval-okay.out.exp"),
+        "err.exp": AssetSymlink("eval-okay.err.exp"),
     }
 )
 def test_read_dir(files: Path, nix: Nix, snapshot: Callable[[str], Snapshot]):
diff --git a/tests/functional2/lang/builtins.readFileType/test_read_file_type.py b/tests/functional2/lang/builtins.readFileType/test_read_file_type.py
index b784125a4..c4dfd8aaf 100644
--- a/tests/functional2/lang/builtins.readFileType/test_read_file_type.py
+++ b/tests/functional2/lang/builtins.readFileType/test_read_file_type.py
@@ -23,6 +23,7 @@ from functional2.testlib.fixtures.snapshot import Snapshot
         },
         "in.nix": CopyFile("in.nix"),
         "out.exp": AssetSymlink("eval-okay.out.exp"),
+        "err.exp": AssetSymlink("eval-okay.err.exp"),
     }
 )
 def test_read_file_type(files: Path, nix: Nix, snapshot: Callable[[str], Snapshot]):
diff --git a/tests/functional2/lang/search-path/test_search_path.py b/tests/functional2/lang/search-path/test_search_path.py
index fb1b90b23..cad85b9ce 100644
--- a/tests/functional2/lang/search-path/test_search_path.py
+++ b/tests/functional2/lang/search-path/test_search_path.py
@@ -16,6 +16,7 @@ from functional2.testlib.fixtures.snapshot import Snapshot
         "lib.nix": CopyFile("../lib.nix"),
         "in.nix": CopyFile("in.nix"),
         "out.exp": AssetSymlink("eval-okay.out.exp"),
+        "err.exp": AssetSymlink("eval-okay.err.exp"),
     }
 )
 def test_search_path(files: Path, nix: Nix, snapshot: Callable[[str], Snapshot]):