diff --git a/src/lib/platform/PortalInputCapture.cpp b/src/lib/platform/PortalInputCapture.cpp
index 4e9c12d2d4..82e23af3a7 100644
--- a/src/lib/platform/PortalInputCapture.cpp
+++ b/src/lib/platform/PortalInputCapture.cpp
@@ -247,7 +247,7 @@ void PortalInputCapture::handleSessionClosed(XdpSession *session)
   m_signals.at(Signal::SessionClosed) = 0;
 }
 
-void PortalInputCapture::claimClipboardOwnership(XdpSession *session)
+void PortalInputCapture::claimClipboardOwnership([[maybe_unused]] XdpSession *session)
 {
 #ifdef HAVE_LIBPORTAL_CLIPBOARD
   PortalClipboard::claimOwnership(m_clipboard, session);