diff --git a/phf_macros/tests/compile-fail-unicase/equivalent-keys.stderr b/phf_macros/tests/compile-fail-unicase/equivalent-keys.stderr
index 11033581..d4180e2a 100644
--- a/phf_macros/tests/compile-fail-unicase/equivalent-keys.stderr
+++ b/phf_macros/tests/compile-fail-unicase/equivalent-keys.stderr
@@ -3,5 +3,3 @@ error: duplicate key
   |
 6 |     UniCase::ascii("foo") => 42, //~ ERROR duplicate key UniCase("FOO")
   |     ^^^^^^^^^^^^^^^^^^^^^
-  |
-  = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
diff --git a/phf_macros/tests/compile-fail/bad-syntax.stderr b/phf_macros/tests/compile-fail/bad-syntax.stderr
index ce42934b..bd387e6d 100644
--- a/phf_macros/tests/compile-fail/bad-syntax.stderr
+++ b/phf_macros/tests/compile-fail/bad-syntax.stderr
@@ -3,5 +3,3 @@ error: expected identifier
   |
 5 |     => //~ ERROR expected identifier
   |     ^^
-  |
-  = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)