diff --git a/genericcore.cpp b/genericcore.cpp
index dcba36f..6403ea5 100644
--- a/genericcore.cpp
+++ b/genericcore.cpp
@@ -200,7 +200,7 @@ void GenericCore::setupModels() {
 #else
   m_mainModelTester = make_unique<QAbstractItemModelTester>(
       m_mainModel.get(), QAbstractItemModelTester::FailureReportingMode::Warning);
-  m_modelTester = make_unique<QAbstractItemModelTester>(
+  m_proxyModelTester = make_unique<QAbstractItemModelTester>(
       m_sortFilterModel.get(), QAbstractItemModelTester::FailureReportingMode::Warning);
 #endif