diff --git a/src/plugins/qt4projectmanager/qt4nodes.cpp b/src/plugins/qt4projectmanager/qt4nodes.cpp
index 1dd62e072e9..4322925fd1f 100644
--- a/src/plugins/qt4projectmanager/qt4nodes.cpp
+++ b/src/plugins/qt4projectmanager/qt4nodes.cpp
@@ -1087,7 +1087,9 @@ QStringList Qt4PriFileNode::formResources(const QString &formFile) const
 {
     QStringList resourceFiles;
     QFile file(formFile);
-    file.open(QIODevice::ReadOnly);
+    if (!file.open(QIODevice::ReadOnly))
+        return resourceFiles;
+
     QXmlStreamReader reader(&file);
 
     QFileInfo fi(formFile);