diff --git a/crates/perry-runtime/src/regex/grammar.rs b/crates/perry-runtime/src/regex/grammar.rs
index 83300d52e0..633aec576e 100644
--- a/crates/perry-runtime/src/regex/grammar.rs
+++ b/crates/perry-runtime/src/regex/grammar.rs
@@ -90,8 +90,12 @@ fn is_regex_identity_escape(ch: char) -> bool {
     )
 }
 
-fn push_escaped_literal(out: &mut String, ch: char) {
+fn push_escaped_literal(out: &mut String, ch: char, in_class: bool) {
     match ch {
+        '-' if in_class => {
+            out.push('\\');
+            out.push(ch);
+        }
         '.' | '+' | '*' | '?' | '(' | ')' | '|' | '[' | ']' | '{' | '}' | '^' | '$' | '\\' => {
             out.push('\\');
             out.push(ch);
@@ -257,7 +261,7 @@ pub(super) fn js_regex_to_rust(pattern: &str) -> String {
                     }
                 }
                 ch if is_regex_identity_escape(ch) => {
-                    push_escaped_literal(&mut result, ch);
+                    push_escaped_literal(&mut result, ch, in_class);
                     i += 2;
                 }
                 // Pass through all other backslash sequences as-is. (An escaped
diff --git a/test-parity/node-suite/globals/regexp-character-class-escaped-hyphen.ts b/test-parity/node-suite/globals/regexp-character-class-escaped-hyphen.ts
new file mode 100644
index 0000000000..2d0e40fceb
--- /dev/null
+++ b/test-parity/node-suite/globals/regexp-character-class-escaped-hyphen.ts
@@ -0,0 +1,19 @@
+const patterns = [
+  "[\\-]",
+  "[a\\- ]",
+  "[a-z]",
+  "[:]",
+  "[ ]",
+  "[a-z ]",
+  "[:\\- ]",
+  " {0,3}\\|?(?:[:\\- ]*\\|)+[\\:\\- ]*\\n",
+];
+
+for (const pattern of patterns) {
+  try {
+    const regex = new RegExp(pattern);
+    console.log("OK  /" + pattern + "/ " + regex.test("-"));
+  } catch (error: any) {
+    console.log("FAIL /" + pattern + "/ -> " + error.message);
+  }
+}