diff --git a/test/compress/issue-1001.js b/test/compress/issue-1001.js
new file mode 100644
index 00000000..89adf81c
--- /dev/null
+++ b/test/compress/issue-1001.js
@@ -0,0 +1,8 @@
+parenthesis_strings_in_parenthesis: {
+    input: {
+        ('(');
+        a(')');
+
+    }
+    expect_exact: '"(";a(")");'
+}