diff --git a/src/kcmultidialog.cpp b/src/kcmultidialog.cpp
--- a/src/kcmultidialog.cpp
+++ b/src/kcmultidialog.cpp
@@ -89,54 +89,57 @@
     Q_Q(KCMultiDialog);
 
 
-    KCModuleProxy *currentModule = nullptr;
     KCModuleProxy *previousModule = nullptr;
-    for (int i = 0; i < modules.count(); ++i) {
-        if (modules[i].item == previous) {
-            previousModule = modules[i].kcm;
-        }
-        if (modules[i].item == current) {
-            currentModule = modules[i].kcm;
-        }
-    }
-    Q_ASSERT(currentModule);
-
-    // For some reason the KCModuleQml modules handle their own margin internally
-    // to match that we need to adjust the spacing of our page widget
-    // by removing the spacing between the left pane and the edge, and the layout on the right
-    // when we reduce the layout on the right we need to pad the buttons back to match
-
-    // TODO KF6 Fix this situation.
-
-    if (currentModule->realModule() && currentModule->realModule()->inherits("KCModuleQml")) {
-        bool padHackLeft = false;
-        bool padHackRight = false;
-        if (q->pageWidget()->model()->rowCount() < 2) {
-            padHackLeft = true;
-            padHackRight = true;
-        } else if (qApp->isRightToLeft()) {
-            padHackLeft = true;
-        } else {
-            padHackRight = true;
+    {
+        KCModuleProxy *currentModule = nullptr;
+        for (int i = 0; i < modules.count(); ++i) {
+            if (modules[i].item == previous) {
+                previousModule = modules[i].kcm;
+            }
+            if (modules[i].item == current) {
+                currentModule = modules[i].kcm;
+            }
         }
 
-        q->layout()->setContentsMargins(padHackLeft ? 0: q->style()->pixelMetric(QStyle::PM_LayoutLeftMargin),
-                                        q->style()->pixelMetric(QStyle::PM_LayoutTopMargin),
-                                        padHackRight ? 0 : q->style()->pixelMetric(QStyle::PM_LayoutRightMargin),
-                                        q->style()->pixelMetric(QStyle::PM_LayoutBottomMargin));
-        q->pageWidget()->layout()->setSpacing(0);
-        q->buttonBox()->setContentsMargins(padHackLeft ? q->style()->pixelMetric(QStyle::PM_LayoutLeftMargin) : 0,
-                                           0,
-                                           padHackRight ? q->style()->pixelMetric(QStyle::PM_LayoutRightMargin) : 0,
-                                           0);
-    } else {
-        q->buttonBox()->setContentsMargins(0, 0, 0, 0);
-        q->pageWidget()->layout()->setSpacing(q->style()->pixelMetric(QStyle::PM_LayoutHorizontalSpacing));
-        q->layout()->setContentsMargins(
-                q->style()->pixelMetric(QStyle::PM_LayoutLeftMargin),
-                q->style()->pixelMetric(QStyle::PM_LayoutTopMargin),
-                q->style()->pixelMetric(QStyle::PM_LayoutRightMargin),
-                q->style()->pixelMetric(QStyle::PM_LayoutBottomMargin));
+        // For some reason the KCModuleQml modules handle their own margin internally
+        // to match that we need to adjust the spacing of our page widget
+        // by removing the spacing between the left pane and the edge, and the layout on the right
+        // when we reduce the layout on the right we need to pad the buttons back to match
+
+        // TODO KF6 Fix this situation.
+
+        if (currentModule) {
+            if (currentModule->realModule() && currentModule->realModule()->inherits("KCModuleQml")) {
+                bool padHackLeft = false;
+                bool padHackRight = false;
+                if (q->pageWidget()->model()->rowCount() < 2) {
+                    padHackLeft = true;
+                    padHackRight = true;
+                } else if (qApp->isRightToLeft()) {
+                    padHackLeft = true;
+                } else {
+                    padHackRight = true;
+                }
+
+                q->layout()->setContentsMargins(padHackLeft ? 0: q->style()->pixelMetric(QStyle::PM_LayoutLeftMargin),
+                                                q->style()->pixelMetric(QStyle::PM_LayoutTopMargin),
+                                                padHackRight ? 0 : q->style()->pixelMetric(QStyle::PM_LayoutRightMargin),
+                                                q->style()->pixelMetric(QStyle::PM_LayoutBottomMargin));
+                q->pageWidget()->layout()->setSpacing(0);
+                q->buttonBox()->setContentsMargins(padHackLeft ? q->style()->pixelMetric(QStyle::PM_LayoutLeftMargin) : 0,
+                                                0,
+                                                padHackRight ? q->style()->pixelMetric(QStyle::PM_LayoutRightMargin) : 0,
+                                                0);
+            } else {
+                q->buttonBox()->setContentsMargins(0, 0, 0, 0);
+                q->pageWidget()->layout()->setSpacing(q->style()->pixelMetric(QStyle::PM_LayoutHorizontalSpacing));
+                q->layout()->setContentsMargins(
+                        q->style()->pixelMetric(QStyle::PM_LayoutLeftMargin),
+                        q->style()->pixelMetric(QStyle::PM_LayoutTopMargin),
+                        q->style()->pixelMetric(QStyle::PM_LayoutRightMargin),
+                        q->style()->pixelMetric(QStyle::PM_LayoutBottomMargin));
+            }
+        }
     }
 
     q->blockSignals(true);