diff --git a/src/kmcommands.cpp b/src/kmcommands.cpp
--- a/src/kmcommands.cpp
+++ b/src/kmcommands.cpp
@@ -1437,7 +1437,7 @@
         const auto msg = item.payload<KMime::Message::Ptr>();
         bool wasEncrypted;
         auto decMsg = MailCommon::CryptoUtils::decryptMessage(msg, wasEncrypted);
-        if (!wasEncrypted) {
+        if (!decMsg || !wasEncrypted) {
             decMsg = msg;
         }