diff --git a/include/proto/applet.h b/include/proto/applet.h
index 91d7be2..62612b5 100644
--- a/include/proto/applet.h
+++ b/include/proto/applet.h
@@ -48,6 +48,9 @@
 	appctx->chunk = NULL;
 	appctx->io_release = NULL;
 	appctx->thread_mask = thread_mask;
+	appctx->call_rate.curr_sec = 0;
+	appctx->call_rate.curr_ctr = 0;
+	appctx->call_rate.prev_ctr = 0;
 	appctx->state = 0;
 }