diff --git a/src/libcalamares/compat/Size.h b/src/libcalamares/compat/Size.h
new file mode 100644
index 000000000..5e217e4cb
--- /dev/null
+++ b/src/libcalamares/compat/Size.h
@@ -0,0 +1,23 @@
+/* === This file is part of Calamares - <https://calamares.io> ===
+ *
+ *   SPDX-FileCopyrightText: 2024 Adriaan de Groot <groot@kde.org>
+ *   SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ *   Calamares is Free Software: see the License-Identifier above.
+ *
+ *
+ */
+#ifndef CALAMARES_COMPAT_SIZE_H
+#define CALAMARES_COMPAT_SIZE_H
+
+#include <QVariant>
+
+namespace Calamares
+{
+/* Compatibility of size types (e.g. qsizetype, STL sizes, int) between Qt5 and Qt6 */
+
+using NumberForTr = int;
+
+}
+
+#endif
diff --git a/src/libcalamares/modulesystem/RequirementsChecker.cpp b/src/libcalamares/modulesystem/RequirementsChecker.cpp
index 1eb85113d..25930b942 100644
--- a/src/libcalamares/modulesystem/RequirementsChecker.cpp
+++ b/src/libcalamares/modulesystem/RequirementsChecker.cpp
@@ -11,6 +11,7 @@
 #include "RequirementsChecker.h"
 
 #include "compat/Mutex.h"
+#include "compat/Size.h"
 #include "modulesystem/Module.h"
 #include "modulesystem/Requirement.h"
 #include "modulesystem/RequirementsModel.h"
@@ -120,7 +121,7 @@ RequirementsChecker::reportProgress()
     {
         cDebug() << "Remaining modules:" << remaining << Logger::DebugList( remainingNames );
         unsigned int posInterval = ( m_progressTimer->interval() < 0 ) ? 1000 : uint( m_progressTimer->interval() );
-        QString waiting = tr( "Waiting for %n module(s)…", "@status", remaining );
+        QString waiting = tr( "Waiting for %n module(s)…", "@status", static_cast<Calamares::NumberForTr>(remaining) );
         QString elapsed = tr( "(%n second(s))", "@status", m_progressTimeouts * posInterval / 999 );
         Q_EMIT requirementsProgress( waiting + QString( " " ) + elapsed );
     }