diff --git a/src/plugins/qt4projectmanager/qt-s60/s60createpackagestep.cpp b/src/plugins/qt4projectmanager/qt-s60/s60createpackagestep.cpp
index facae0e041b..328064508f5 100644
--- a/src/plugins/qt4projectmanager/qt-s60/s60createpackagestep.cpp
+++ b/src/plugins/qt4projectmanager/qt-s60/s60createpackagestep.cpp
@@ -724,7 +724,7 @@ S60CreatePackageStepConfigWidget::S60CreatePackageStepConfigWidget(S60CreatePack
 {
     m_ui.setupUi(this);
     m_ui.signaturePath->setExpectedKind(Utils::PathChooser::File);
-    m_ui.signaturePath->setPromptDialogFilter(QLatin1String("*.cer"));
+    m_ui.signaturePath->setPromptDialogFilter(QLatin1String("*.cer *.crt *.der *.pem"));
     m_ui.keyFilePath->setExpectedKind(Utils::PathChooser::File);
     updateUi();
     connect(m_ui.customCertificateButton, SIGNAL(clicked()),