diff --git a/custom-completions/pytest/pytest-completions.nu b/custom-completions/pytest/pytest-completions.nu
index 84bdd4446..8a7624a64 100644
--- a/custom-completions/pytest/pytest-completions.nu
+++ b/custom-completions/pytest/pytest-completions.nu
@@ -7,8 +7,8 @@ def "nu-complete --code-highlight" [] { ["yes", "no"] }
 def "nu-complete --pastebin" [] { ["failed", "all"] }
 def "nu-complete --import-mode" [] { ["prepend", "append", "importlib"] }
 def "nu-complete --doctest-report" [] { ["none", "cdiff", "ndiff", "udiff", "only_first_failure"] }
-def "nu-complete --log-file-mode" [] { ["w"; "a"] }
-def "nu-complete --assert" [] { ["plain"; "rewrite"] }
+def "nu-complete --log-file-mode" [] { ["w", "a"] }
+def "nu-complete --assert" [] { ["plain", "rewrite"] }
 def "nu-complete --log-level" [] { ["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"] }
 
 export extern pytest [
diff --git a/custom-completions/pytest/tests/pytest-completions.nu b/custom-completions/pytest/tests/pytest-completions.nu
new file mode 100644
index 000000000..8f8f3b382
--- /dev/null
+++ b/custom-completions/pytest/tests/pytest-completions.nu
@@ -0,0 +1,9 @@
+# Run with `nu custom-completions/pytest/tests/pytest-completions.nu`.
+use std/assert
+source ../pytest-completions.nu
+
+assert equal (nu-complete --log-file-mode) ["w", "a"]
+assert equal (nu-complete --assert) ["plain", "rewrite"]
+
+assert equal ('pytest --log-file-mode ' | commandline complete --detailed | get value | sort) ["a", "w"]
+assert equal ('pytest --assert ' | commandline complete --detailed | get value | sort) ["plain", "rewrite"]