diff --git a/test/backends/SessionInsertHasMany.cpp b/test/backends/SessionInsertHasMany.cpp
index ea2f36a..13c450c 100644
--- a/test/backends/SessionInsertHasMany.cpp
+++ b/test/backends/SessionInsertHasMany.cpp
@@ -10,7 +10,7 @@ using namespace matador::object;
 using namespace matador::test;
 
 TEST_CASE_METHOD(SessionFixture, "Test insert object with has many relation", "[session][insert][has_many]") {
-  auto result = schema.attach<book>("books")
+  const auto result = schema.attach<book>("books")
     .and_then( [this] { return schema.attach<author>("authors"); } )
     .and_then([this] { return schema.create(db); } );
   REQUIRE(result.is_ok());