diff --git a/pglab/catalog/tables/TablesTableModel.cpp b/pglab/catalog/tables/TablesTableModel.cpp
index 244762b..0df8ff2 100644
--- a/pglab/catalog/tables/TablesTableModel.cpp
+++ b/pglab/catalog/tables/TablesTableModel.cpp
@@ -304,5 +304,5 @@ std::function<bool (const PgClass &)> TablesTableModel::GetNamespaceFilterLambda
     case NamespaceFilter::InformationSchema:
         return [] (const PgClass &c) { return c.ns().objectName() == "information_schema"; };
     }
-
+    throw std::logic_error("missing case");
 }
diff --git a/pglab/crud/CrudModel.cpp b/pglab/crud/CrudModel.cpp
index 90935d7..344f7c6 100644
--- a/pglab/crud/CrudModel.cpp
+++ b/pglab/crud/CrudModel.cpp
@@ -547,7 +547,7 @@ void CrudModel::revert()
 
 void CrudModel::appendNewRow()
 {
-    int row = m_rowMapping.size();
+    int row = static_cast<int>(m_rowMapping.size());
 	beginInsertRows(QModelIndex(), row, row);
     m_rowMapping.emplace_back(allocNewRowKey(), std::vector<Value>(m_roData->cols()));
     endInsertRows();