diff --git a/src/core/meshcop/secure_transport.hpp b/src/core/meshcop/secure_transport.hpp
index dffb79ae1634..82e4c842c612 100644
--- a/src/core/meshcop/secure_transport.hpp
+++ b/src/core/meshcop/secure_transport.hpp
@@ -305,8 +305,7 @@ class SecureTransport : public InstanceLocator
     /**
      * Extracts public key from it's own certificate.
      *
-     * @return public key from own certificate in form of entire ASN.1 field.
-     *
+     * @returns Public key from own certificate in form of entire ASN.1 field.
      */
     const mbedtls_asn1_buf &GetOwnPublicKey(void) const { return mOwnCert.pk_raw; }