diff --git a/src/lib/gui/tls/TlsUtility.cpp b/src/lib/gui/tls/TlsUtility.cpp
index ea742c8cc..6b8c4d5d4 100644
--- a/src/lib/gui/tls/TlsUtility.cpp
+++ b/src/lib/gui/tls/TlsUtility.cpp
@@ -23,7 +23,7 @@ bool TlsUtility::isEnabled() const
   return Settings::value(Settings::Security::TlsEnabled).toBool();
 }
 
-bool TlsUtility::generateCertificate()
+bool TlsUtility::generateCertificate() const
 {
   qDebug(
       "generating tls certificate, "
@@ -50,7 +50,7 @@ bool TlsUtility::generateCertificate()
   return m_certificate.generateCertificate(certificate, length);
 }
 
-bool TlsUtility::persistCertificate()
+bool TlsUtility::persistCertificate() const
 {
   qDebug("persisting tls certificate");
 
diff --git a/src/lib/gui/tls/TlsUtility.h b/src/lib/gui/tls/TlsUtility.h
index 340743381..6d183e254 100644
--- a/src/lib/gui/tls/TlsUtility.h
+++ b/src/lib/gui/tls/TlsUtility.h
@@ -19,8 +19,8 @@ class TlsUtility : public QObject
 public:
   explicit TlsUtility(QObject *parent = nullptr);
 
-  bool generateCertificate();
-  bool persistCertificate();
+  bool generateCertificate() const;
+  bool persistCertificate() const;
 
   /**
    * @brief Combines the availability and the enabled status of TLS.