diff --git a/io/entry.h b/io/entry.h
index 6afb72d..07decbb 100644
--- a/io/entry.h
+++ b/io/entry.h
@@ -120,18 +120,18 @@ public:
     NodeEntry(const std::string &label, NodeEntry *parent = nullptr);
     NodeEntry(std::istream &stream);
     NodeEntry(const NodeEntry &other);
-    ~NodeEntry();
+    ~NodeEntry() override;
 
-    virtual EntryType type() const;
+    EntryType type() const override;
     const std::vector<Entry *> &children() const;
     void deleteChildren(int begin, int end);
     void replaceChild(std::size_t at, Entry *newChild);
     Entry *entryByPath(std::list<std::string> &path, bool includeThis = true, EntryType *creationType = nullptr);
     bool isExpandedByDefault() const;
     void setExpandedByDefault(bool expandedByDefault);
-    virtual void make(std::ostream &stream) const;
-    virtual NodeEntry *clone() const;
-    void accumulateStatistics(EntryStatistics &stats) const;
+    void make(std::ostream &stream) const override;
+    NodeEntry *clone() const override;
+    void accumulateStatistics(EntryStatistics &stats) const override;
 
 private:
     std::vector<Entry *> m_children;
@@ -174,14 +174,14 @@ public:
     AccountEntry(const std::string &label, NodeEntry *parent = nullptr);
     AccountEntry(std::istream &stream);
     AccountEntry(const AccountEntry &other);
-    ~AccountEntry();
+    ~AccountEntry() override;
 
-    virtual EntryType type() const;
+    EntryType type() const override;
     const std::vector<Field> &fields() const;
     std::vector<Field> &fields();
-    virtual void make(std::ostream &stream) const;
-    virtual AccountEntry *clone() const;
-    void accumulateStatistics(EntryStatistics &stats) const;
+    void make(std::ostream &stream) const override;
+    AccountEntry *clone() const override;
+    void accumulateStatistics(EntryStatistics &stats) const override;
 
 private:
     std::vector<Field> m_fields;
diff --git a/tests/entrytests.cpp b/tests/entrytests.cpp
index 610d414..e0d78dc 100644
--- a/tests/entrytests.cpp
+++ b/tests/entrytests.cpp
@@ -26,8 +26,8 @@ class EntryTests : public TestFixture {
     CPPUNIT_TEST_SUITE_END();
 
 public:
-    void setUp();
-    void tearDown();
+    void setUp() override;
+    void tearDown() override;
 
     void testNewEntryCorrectlyInitialized();
     void testNesting();
diff --git a/tests/fieldtests.cpp b/tests/fieldtests.cpp
index 4136a10..95266fa 100644
--- a/tests/fieldtests.cpp
+++ b/tests/fieldtests.cpp
@@ -25,8 +25,8 @@ class FieldTests : public TestFixture {
     CPPUNIT_TEST_SUITE_END();
 
 public:
-    void setUp();
-    void tearDown();
+    void setUp() override;
+    void tearDown() override;
 
     void testNewFieldCorrectlyInitialized();
     void testMutation();
diff --git a/tests/opensslrandomdevice.cpp b/tests/opensslrandomdevice.cpp
index a80cd51..f83676b 100644
--- a/tests/opensslrandomdevice.cpp
+++ b/tests/opensslrandomdevice.cpp
@@ -22,8 +22,8 @@ class OpenSslRandomDeviceTests : public TestFixture {
     CPPUNIT_TEST_SUITE_END();
 
 public:
-    void setUp();
-    void tearDown();
+    void setUp() override;
+    void tearDown() override;
 
     void testUsageWithStandardClasses();
 };
diff --git a/tests/opensslutils.cpp b/tests/opensslutils.cpp
index d1bb3f1..d8d3701 100644
--- a/tests/opensslutils.cpp
+++ b/tests/opensslutils.cpp
@@ -25,8 +25,8 @@ class OpenSslUtilsTests : public TestFixture {
     CPPUNIT_TEST_SUITE_END();
 
 public:
-    void setUp();
-    void tearDown();
+    void setUp() override;
+    void tearDown() override;
 
     void testComputeSha256Sum();
     void testGenerateRandomNumber();
diff --git a/tests/passwordfiletests.cpp b/tests/passwordfiletests.cpp
index 38d5ec5..53fed24 100644
--- a/tests/passwordfiletests.cpp
+++ b/tests/passwordfiletests.cpp
@@ -24,8 +24,8 @@ class PasswordFileTests : public TestFixture {
     CPPUNIT_TEST_SUITE_END();
 
 public:
-    void setUp();
-    void tearDown();
+    void setUp() override;
+    void tearDown() override;
 
     void testReading();
     void testReading(const string &context, const string &testfile1path, const string &testfile1password, const string &testfile2,