1 files changed, 2 insertions, 0 deletions

diff --git a/src/common/helper.c b/src/common/helper.c
index 1090fefa..864051a9 100644
--- a/src/common/helper.c
+++ b/src/common/helper.c
@@ -142,6 +142,7 @@ GNUNET_GTK_save_call (GNUNET_ThreadMainFunction func, void *args)
   GNUNET_mutex_lock (sclock);
   if ((saveCallsUp == GNUNET_NO) || (!GNUNET_thread_test_self (mainThread)))
     {
+      GNUNET_GE_ASSERT(NULL, saveCallsUp != GNUNET_SYSERR);
       call.args = args;
       call.func = func;
       call.sem = GNUNET_semaphore_create (0);
@@ -417,6 +418,7 @@ GNUNET_GTK_shutdown_plugins ()
       i = pscCount;
       GNUNET_mutex_unlock (sclock);
     }
+  saveCallsUp = GNUNET_SYSERR;
 }
 
 void