diff --git a/src/libs/utils/wizardpage.cpp b/src/libs/utils/wizardpage.cpp
index 53702340736..782c4cd0269 100644
--- a/src/libs/utils/wizardpage.cpp
+++ b/src/libs/utils/wizardpage.cpp
@@ -70,4 +70,14 @@ void WizardPage::registerFieldWithName(const QString &name, QWidget *widget,
     registerField(name, widget, property, changedSignal);
 }
 
+bool WizardPage::handleReject()
+{
+    return false;
+}
+
+bool WizardPage::handleAccept()
+{
+    return false;
+}
+
 } // namespace Utils
diff --git a/src/libs/utils/wizardpage.h b/src/libs/utils/wizardpage.h
index 5ff240339b4..786d6fc4b92 100644
--- a/src/libs/utils/wizardpage.h
+++ b/src/libs/utils/wizardpage.h
@@ -52,6 +52,9 @@ public:
     void registerFieldWithName(const QString &name, QWidget *widget,
                                const char *property = 0, const char *changedSignal = 0);
 
+    virtual bool handleReject();
+    virtual bool handleAccept();
+
 signals:
     // Emitted when there is something that the developer using this page should be aware of.
     void reportError(const QString &errorMessage);
diff --git a/src/plugins/projectexplorer/jsonwizard/jsonwizard.cpp b/src/plugins/projectexplorer/jsonwizard/jsonwizard.cpp
index 7d2f6707011..a3ddf29f607 100644
--- a/src/plugins/projectexplorer/jsonwizard/jsonwizard.cpp
+++ b/src/plugins/projectexplorer/jsonwizard/jsonwizard.cpp
@@ -176,6 +176,10 @@ void JsonWizard::removeAttributeFromAllFiles(Core::GeneratedFile::Attribute a)
 
 void JsonWizard::accept()
 {
+    auto page = qobject_cast<Utils::WizardPage *>(currentPage());
+    if (page && page->handleAccept())
+        return;
+
     Utils::Wizard::accept();
 
     QString errorMessage;
@@ -231,6 +235,15 @@ void JsonWizard::accept()
     openFiles(m_files);
 }
 
+void JsonWizard::reject()
+{
+    auto page = qobject_cast<Utils::WizardPage *>(currentPage());
+    if (page && page->handleReject())
+        return;
+
+    Utils::Wizard::reject();
+}
+
 void JsonWizard::handleNewPages(int pageId)
 {
     Utils::WizardPage *wp = qobject_cast<Utils::WizardPage *>(page(pageId));
diff --git a/src/plugins/projectexplorer/jsonwizard/jsonwizard.h b/src/plugins/projectexplorer/jsonwizard/jsonwizard.h
index d72bc934aff..73fa2300e5c 100644
--- a/src/plugins/projectexplorer/jsonwizard/jsonwizard.h
+++ b/src/plugins/projectexplorer/jsonwizard/jsonwizard.h
@@ -95,6 +95,7 @@ signals:
 
 public slots:
     void accept();
+    void reject();
 
 private slots:
     void handleNewPages(int pageId);