diff --git a/desktop/kde/applications/kcalutils/files/qt5.patch b/desktop/kde/applications/kcalutils/files/qt5.patch
new file mode 100644
index 0000000000..eb17adc609
--- /dev/null
+++ b/desktop/kde/applications/kcalutils/files/qt5.patch
@@ -0,0 +1,13 @@
+diff -Nuar a/src/grantleeki18nlocalizer.cpp b/src/grantleeki18nlocalizer.cpp
+--- a/src/grantleeki18nlocalizer.cpp	2017-12-04 13:20:01.000000000 +0300
++++ b/src/grantleeki18nlocalizer.cpp	2017-12-16 18:18:43.000518179 +0300
+@@ -67,7 +67,9 @@
+                 break;
+             }
+             // fall-through
++#if QT_VERSION >= QT_VERSION_CHECK(5,8,0)
+             Q_FALLTHROUGH();
++#endif
+         default:
+             qCWarning(KCALUTILS_LOG) << "Unknown type" << iter->typeName() << "(" << iter->type() << ")";
+             break;