diff --git a/src/crypto/kdf/AesKdf.h b/src/crypto/kdf/AesKdf.h
index 20ef5c47..84156e6f 100644
--- a/src/crypto/kdf/AesKdf.h
+++ b/src/crypto/kdf/AesKdf.h
@@ -35,8 +35,8 @@ protected:
     int benchmarkImpl(int msec) const override;
 
 private:
-    static bool
-    transformKeyRaw(const QByteArray& key, const QByteArray& seed, int rounds, QByteArray* result) Q_REQUIRED_RESULT;
+    Q_REQUIRED_RESULT static bool
+    transformKeyRaw(const QByteArray& key, const QByteArray& seed, int rounds, QByteArray* result);
 };
 
 #endif // KEEPASSX_AESKDF_H
diff --git a/src/crypto/kdf/Argon2Kdf.h b/src/crypto/kdf/Argon2Kdf.h
index 9449f345..2f029a57 100644
--- a/src/crypto/kdf/Argon2Kdf.h
+++ b/src/crypto/kdf/Argon2Kdf.h
@@ -45,13 +45,13 @@ protected:
     quint32 m_parallelism;
 
 private:
-    static bool transformKeyRaw(const QByteArray& key,
+    Q_REQUIRED_RESULT static bool transformKeyRaw(const QByteArray& key,
                                 const QByteArray& seed,
                                 quint32 version,
                                 quint32 rounds,
                                 quint64 memory,
                                 quint32 parallelism,
-                                QByteArray& result) Q_REQUIRED_RESULT;
+                                QByteArray& result);
 };
 
 #endif // KEEPASSX_ARGON2KDF_H
diff --git a/src/keys/CompositeKey.h b/src/keys/CompositeKey.h
index d81c4698..43c624ac 100644
--- a/src/keys/CompositeKey.h
+++ b/src/keys/CompositeKey.h
@@ -39,7 +39,7 @@ public:
 
     QByteArray rawKey() const override;
     QByteArray rawKey(const QByteArray* transformSeed, bool* ok = nullptr) const;
-    bool transform(const Kdf& kdf, QByteArray& result) const Q_REQUIRED_RESULT;
+    Q_REQUIRED_RESULT bool transform(const Kdf& kdf, QByteArray& result) const;
     bool challenge(const QByteArray& seed, QByteArray& result) const;
 
     void addKey(QSharedPointer<Key> key);