diff --git a/tests/functional/fetchGit.sh b/tests/functional/fetchGit.sh
index 5e5e8e61f..219c4f0da 100755
--- a/tests/functional/fetchGit.sh
+++ b/tests/functional/fetchGit.sh
@@ -81,7 +81,7 @@ path2=$(nix eval --raw --expr "(builtins.fetchGit { url = file://$repo; rev = \"
 [[ $(nix eval --raw --expr "builtins.readFile (fetchGit { url = file://$repo; rev = \"$rev2\"; } + \"/hello\")") = world ]]
 
 # But without a hash, it fails.
-expectStderr 1 nix eval --expr 'builtins.fetchGit "file:///foo"' | grepQuiet "'fetchGit' will not fetch unlocked input"
+expectStderr 1 nix eval --expr 'builtins.fetchGit "file:///foo"' | grepQuiet "'fetchGit' doesn't fetch unlocked input"
 
 # Fetch again. This should be cached.
 mv $repo ${repo}-tmp
@@ -226,7 +226,7 @@ path6=$(nix eval --impure --raw --expr "(builtins.fetchTree { type = \"git\"; ur
 [[ $path3 = $path6 ]]
 [[ $(nix eval --impure --expr "(builtins.fetchTree { type = \"git\"; url = \"file://$TEST_ROOT/shallow\"; ref = \"dev\"; shallow = true; }).revCount or 123") == 123 ]]
 
-expectStderr 1 nix eval --expr 'builtins.fetchTree { type = "git"; url = "file:///foo"; }' | grepQuiet "'fetchTree' will not fetch unlocked input"
+expectStderr 1 nix eval --expr 'builtins.fetchTree { type = "git"; url = "file:///foo"; }' | grepQuiet "'fetchTree' doesn't fetch unlocked input"
 
 # Explicit ref = "HEAD" should work, and produce the same outPath as without ref
 path7=$(nix eval --impure --raw --expr "(builtins.fetchGit { url = \"file://$repo\"; ref = \"HEAD\"; }).outPath")
diff --git a/tests/nixos/github-flakes.nix b/tests/nixos/github-flakes.nix
index ac1fb93a7..b93e35074 100644
--- a/tests/nixos/github-flakes.nix
+++ b/tests/nixos/github-flakes.nix
@@ -230,7 +230,7 @@ in
       # Fetching without a narHash should succeed if trust-github is set and fail otherwise.
       client.succeed(f"nix eval --raw --expr 'builtins.fetchTree github:github:fancy-enterprise/private-flake/{info['revision']}'")
       out = client.fail(f"nix eval --no-trust-tarballs-from-git-forges --raw --expr 'builtins.fetchTree github:github:fancy-enterprise/private-flake/{info['revision']}' 2>&1")
-      assert "will not fetch unlocked input" in out, "--no-trust-tarballs-from-git-forges did not fail with the expected error"
+      assert "doesn't fetch unlocked input" in out, "--no-trust-tarballs-from-git-forges did not fail with the expected error"
 
       # Shut down the web server. The flake should be cached on the client.
       github.succeed("systemctl stop httpd.service")