diff --git a/tests/selectors.rs b/tests/selectors.rs
index a0600e3..ae69ff8 100644
--- a/tests/selectors.rs
+++ b/tests/selectors.rs
@@ -823,6 +823,13 @@ test!(
     "[a=\"a\\\\66\"] {\n  color: &;\n}\n",
     "[a=a\\66] {\n  color: [a=a\\66];\n}\n"
 );
+test!(
+    attribute_value_contains_escaped_slash_in_quotes,
+    r#"[data-key="\\"] {
+        color: &;
+    }"#,
+    "[data-key=\"\\\\\"] {\n  color: [data-key=\"\\\\\"];\n}\n"
+);
 test!(
     #[ignore = "we have to rewrite quoted attribute value parsing somewhat"]
     attribute_value_escape_ends_with_whitespace,