diff --git a/include/haproxy/task.h b/include/haproxy/task.h
index 72bb7bf..b3ffdf2 100644
--- a/include/haproxy/task.h
+++ b/include/haproxy/task.h
@@ -526,6 +526,7 @@
 	t->process = NULL;
 	t->tid = -1;
 #ifdef DEBUG_TASK
+	t->call_date = 0;
 	t->debug.caller_idx = 0;
 #endif
 	LIST_INIT(&t->list);