diff --git a/src/main/capi/scalar_function-c.cpp b/src/main/capi/scalar_function-c.cpp
index 1653b19450e4..89625b28765e 100644
--- a/src/main/capi/scalar_function-c.cpp
+++ b/src/main/capi/scalar_function-c.cpp
@@ -354,9 +354,14 @@ duckdb_expression duckdb_scalar_function_bind_get_argument(duckdb_bind_info info
 		return nullptr;
 	}
 	auto &bind_info = GetCScalarFunctionBindInfo(info);
-	auto wrapper = new ExpressionWrapper();
-	wrapper->expr = bind_info.arguments[index]->Copy();
-	return reinterpret_cast<duckdb_expression>(wrapper);
+	try {
+		auto wrapper = duckdb::make_uniq<ExpressionWrapper>();
+		wrapper->expr = bind_info.arguments[index]->Copy();
+		return reinterpret_cast<duckdb_expression>(wrapper.release());
+	} catch (std::exception &e) {
+		duckdb_scalar_function_bind_set_error(info, e.what());
+		return nullptr;
+	}
 }
 
 void duckdb_scalar_function_set_extra_info(duckdb_scalar_function function, void *extra_info,
diff --git a/test/api/capi/capi_scalar_functions.cpp b/test/api/capi/capi_scalar_functions.cpp
index 60476f6f1121..401bd75b6b5f 100644
--- a/test/api/capi/capi_scalar_functions.cpp
+++ b/test/api/capi/capi_scalar_functions.cpp
@@ -558,6 +558,13 @@ TEST_CASE("Test Scalar Function with Bind Info", "[capi]") {
 	result = tester.Query("SELECT get_connection_id(200::UTINYINT + 200::UTINYINT)");
 	REQUIRE_FAIL(result);
 	REQUIRE(StringUtil::Contains(result->ErrorMessage(), "Overflow in addition of"));
+
+	// Correlated subquery as argument: BoundSubqueryExpression::Copy() throws SerializationException.
+	// Before the fix, this exception escaped the C API boundary and called std::terminate() because
+	// Go's CGo frames (and plain C callers) have no C++ unwind tables. The fix catches at the C
+	// boundary and surfaces it as a normal query error.
+	result = tester.Query("SELECT get_connection_id((SELECT 42::UBIGINT)) FROM (VALUES(1)) t(x)");
+	REQUIRE_FAIL(result);
 }
 
 TEST_CASE("Test volatile scalar function with bind in WHERE clause", "[capi]") {