diff --git a/src/plugins/projectexplorer/projectmodels.cpp b/src/plugins/projectexplorer/projectmodels.cpp
index f784daf5905..c6a1ba7b30b 100644
--- a/src/plugins/projectexplorer/projectmodels.cpp
+++ b/src/plugins/projectexplorer/projectmodels.cpp
@@ -718,7 +718,7 @@ QVariant FlatModel::data(const QModelIndex &index, int role) const
             break;
         }
         case Qt::ToolTipRole: {
-            result = node->path();
+            result = QDir::toNativeSeparators(node->path());
             break;
         }
         case Qt::DecorationRole: {