diff --git a/Test/Expect/error01.err b/Test/Expect/error01.err
index 3fe0c3a8c..7876dd4fe 100644
--- a/Test/Expect/error01.err
+++ b/Test/Expect/error01.err
@@ -1 +1 @@
-error01.spin:5: error: Unknown symbol x
+error01.spin:5: error: Unknown symbol `x'
diff --git a/Test/Expect/error08.err b/Test/Expect/error08.err
index 9d2d8b191..e9edf5353 100644
--- a/Test/Expect/error08.err
+++ b/Test/Expect/error08.err
@@ -1 +1 @@
-error08.spin:3: error: Unknown symbol a
+error08.spin:3: error: Unknown symbol `a'