diff --git a/src/gui/partitionmanagerwidget.cpp b/src/gui/partitionmanagerwidget.cpp
index 14d5287..657bbe9 100644
--- a/src/gui/partitionmanagerwidget.cpp
+++ b/src/gui/partitionmanagerwidget.cpp
@@ -65,6 +65,8 @@
 
 #include <config.h>
 
+#include <typeinfo>
+
 class PartitionTreeWidgetItem : public QTreeWidgetItem
 {
     Q_DISABLE_COPY(PartitionTreeWidgetItem)
@@ -420,19 +422,23 @@ void PartitionManagerWidget::onDecryptPartition()
         return;
     }
 
-    if (p->fileSystem().type() != FileSystem::Luks)
+    if (!p->roles().has(PartitionRole::Luks))
         return;
 
-    FS::luks& luksFs = dynamic_cast<FS::luks&>(p->fileSystem());
+    try {
+        FS::luks& luksFs = dynamic_cast<FS::luks&>(p->fileSystem());
 
-    if (luksFs.canCryptOpen(p->partitionPath())) {
-        if (!luksFs.cryptOpen(p->partitionPath()))
-            KMessageBox::detailedSorry(this, xi18nc("@info", "The encrypted file system on partition <filename>%1</filename> could not be unlocked.", p->deviceNode()), QString(), i18nc("@title:window", "Could Not Unlock Encrypted File System."));
-    } else if (luksFs.canCryptClose(p->partitionPath())) {
-        if (!luksFs.cryptClose(p->partitionPath()))
-            KMessageBox::detailedSorry(this, xi18nc("@info", "The encrypted file system on partition <filename>%1</filename> could not be locked.", p->deviceNode()), QString(), i18nc("@title:window", "Could Not Lock Encrypted File System."));
+        if (luksFs.canCryptOpen(p->partitionPath())) {
+            if (!luksFs.cryptOpen(p->partitionPath()))
+                KMessageBox::detailedSorry(this, xi18nc("@info", "The encrypted file system on partition <filename>%1</filename> could not be unlocked.", p->deviceNode()), QString(), i18nc("@title:window", "Could Not Unlock Encrypted File System."));
+        } else if (luksFs.canCryptClose(p->partitionPath())) {
+            if (!luksFs.cryptClose(p->partitionPath()))
+                KMessageBox::detailedSorry(this, xi18nc("@info", "The encrypted file system on partition <filename>%1</filename> could not be locked.", p->deviceNode()), QString(), i18nc("@title:window", "Could Not Lock Encrypted File System."));
+        }
+    } catch (const std::bad_cast&)
+    {
+        return;
     }
-
     updatePartitions();
 }