diff --git a/main.cpp b/main.cpp
index b3de449f6..43543ce59 100644
--- a/main.cpp
+++ b/main.cpp
@@ -373,13 +373,14 @@ int main(int argc, char *argv[])
             }
           if (!mem_jt9.attach ())
             {
-            if (!mem_jt9.create (sizeof (struct dec_data)))
+              if (!mem_jt9.create (sizeof (dec_data)))
               {
                 splash.hide ();
                 MessageBox::critical_message (nullptr, a.translate ("main", "Shared memory error"),
                                               a.translate ("main", "Unable to create shared memory segment"));
                 throw std::runtime_error {"Shared memory error"};
               }
+              qDebug () << "shmem size:" << mem_jt9.size ();
             }
           else
             {