diff --git a/src/plugins/qt4projectmanager/qt-s60/s60symbiancertificate.cpp b/src/plugins/qt4projectmanager/qt-s60/s60symbiancertificate.cpp
index 26f0e23f47a..f60288555c7 100644
--- a/src/plugins/qt4projectmanager/qt-s60/s60symbiancertificate.cpp
+++ b/src/plugins/qt4projectmanager/qt-s60/s60symbiancertificate.cpp
@@ -67,7 +67,7 @@ namespace {
 /*
 * X.509 S60 Certificate Extension
 */
-class S60CertificateExtension : Certificate_Extension
+class S60CertificateExtension : public Certificate_Extension
 {
 public:
     OID oid_of() const;