diff --git a/test/libsolidity/syntaxTests/operators/custom/operator_bind_a_bound_free_function.sol b/test/libsolidity/syntaxTests/operators/custom/operator_bind_a_bound_free_function.sol
new file mode 100644
index 000000000..3cd1c083e
--- /dev/null
+++ b/test/libsolidity/syntaxTests/operators/custom/operator_bind_a_bound_free_function.sol
@@ -0,0 +1,12 @@
+type Int is uint;
+using {f} for Int;
+
+Int constant v;
+using {v.f as +} for Int;
+
+function f(Int) pure returns (Int) {
+    return Int.wrap(0);
+}
+
+// ----
+// DeclarationError 7920: (61-64): Identifier not found or not unique.