diff --git a/src/lib/platform/PortalRemoteDesktop.cpp b/src/lib/platform/PortalRemoteDesktop.cpp
index 7c12d25ad..fa981949b 100644
--- a/src/lib/platform/PortalRemoteDesktop.cpp
+++ b/src/lib/platform/PortalRemoteDesktop.cpp
@@ -219,7 +219,7 @@ void PortalRemoteDesktop::glibThread(const void *)
   }
 }
 
-void PortalRemoteDesktop::claimClipboard()
+void PortalRemoteDesktop::claimClipboard() const
 {
 #ifdef HAVE_LIBPORTAL_CLIPBOARD
   if (!m_session) {
diff --git a/src/lib/platform/PortalRemoteDesktop.h b/src/lib/platform/PortalRemoteDesktop.h
index 8bc2ea2e4..c679db69d 100644
--- a/src/lib/platform/PortalRemoteDesktop.h
+++ b/src/lib/platform/PortalRemoteDesktop.h
@@ -23,7 +23,7 @@ public:
   PortalRemoteDesktop(EiScreen *screen, IEventQueue *events);
   ~PortalRemoteDesktop();
 
-  void claimClipboard();
+  void claimClipboard() const;
 
 private:
   void glibThread(const void *);