diff --git a/tests/testlib/akonadifakejobs.h b/tests/testlib/akonadifakejobs.h
--- a/tests/testlib/akonadifakejobs.h
+++ b/tests/testlib/akonadifakejobs.h
@@ -41,13 +41,13 @@
     using FakeJob::FakeJob;
 
     void setCollections(const Akonadi::Collection::List &collections);
-    Akonadi::Collection::List collections() const;
+    Akonadi::Collection::List collections() const Q_DECL_OVERRIDE;
 
     QString resource() const;
     void setResource(const QString &resource) Q_DECL_OVERRIDE;
 
     bool filtered() const;
-    void setFiltered(bool filter);
+    void setFiltered(bool filter) Q_DECL_OVERRIDE;
 
 private:
     Akonadi::Collection::List m_collections;
@@ -62,7 +62,7 @@
     using FakeJob::FakeJob;
 
     void setCollections(const Akonadi::Collection::List &collections);
-    Akonadi::Collection::List collections() const;
+    Akonadi::Collection::List collections() const Q_DECL_OVERRIDE;
 
 private:
     Akonadi::Collection::List m_collections;
@@ -75,7 +75,7 @@
     using FakeJob::FakeJob;
 
     void setItems(const Akonadi::Item::List &items);
-    Akonadi::Item::List items() const;
+    Akonadi::Item::List items() const Q_DECL_OVERRIDE;
 
     Akonadi::Collection collection() const;
     void setCollection(const Akonadi::Collection &collection) Q_DECL_OVERRIDE;
@@ -92,7 +92,7 @@
     using FakeJob::FakeJob;
 
     void setTags(const Akonadi::Tag::List &tags);
-    Akonadi::Tag::List tags() const;
+    Akonadi::Tag::List tags() const Q_DECL_OVERRIDE;
 
 private:
     Akonadi::Tag::List m_tags;
diff --git a/tests/units/widgets/applicationcomponentstest.cpp b/tests/units/widgets/applicationcomponentstest.cpp
--- a/tests/units/widgets/applicationcomponentstest.cpp
+++ b/tests/units/widgets/applicationcomponentstest.cpp
@@ -261,7 +261,7 @@
     {
     }
 
-    int exec()
+    int exec() Q_DECL_OVERRIDE
     {
         execCount++;
         return QDialog::Accepted;
diff --git a/tests/units/widgets/availablepagesviewtest.cpp b/tests/units/widgets/availablepagesviewtest.cpp
--- a/tests/units/widgets/availablepagesviewtest.cpp
+++ b/tests/units/widgets/availablepagesviewtest.cpp
@@ -58,7 +58,7 @@
     {
     }
 
-    int exec()
+    int exec() Q_DECL_OVERRIDE
     {
         execCount++;
         return QDialog::Accepted;
@@ -97,7 +97,7 @@
     {
     }
 
-    int exec()
+    int exec() Q_DECL_OVERRIDE
     {
         execCount++;
         return QDialog::Accepted;