diff --git a/parley/src/tests/utils/cursor_test.rs b/parley/src/tests/utils/cursor_test.rs
index 615e6316..1bf8ff6d 100644
--- a/parley/src/tests/utils/cursor_test.rs
+++ b/parley/src/tests/utils/cursor_test.rs
@@ -131,7 +131,7 @@ impl CursorTest {
             if env_var == "0" {
                 return false;
             }
-            if env_var.to_ascii_lowercase() == "false" {
+            if env_var.eq_ignore_ascii_case("false") {
                 return false;
             }
             true