1 files changed, 3 insertions, 0 deletions
diff --git a/tests/diagnostics/command-line/unknown-option.slang.expected b/tests/diagnostics/command-line/unknown-option.slang.expected
index 5b99ce862..8f73029c6 100644
--- a/tests/diagnostics/command-line/unknown-option.slang.expected
+++ b/tests/diagnostics/command-line/unknown-option.slang.expected
@@ -3,6 +3,9 @@ standard error = {
 (1): error 17: unknown command-line option '-destroy-all-humans'
 tests/diagnostics/command-line/unknown-option.slang -destroy-all-humans
                                                     ^
+Usage: slangc [options...] [--] <input files>
+
+For help: slangc -h
 }
 standard output = {
 }