diff --git a/core.c b/core.c
index 1049e9c0edb0..1c3b0edd714a 100644
--- a/core.c
+++ b/core.c
@@ -9,6 +9,8 @@

 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

+#include <linux/delay.h>
+
 #define CREATE_TRACE_POINTS
 #include "greybus.h"
 #include "greybus_trace.h"
@@ -181,6 +183,8 @@ static int greybus_probe(struct device *dev)
                return retval;
        }

+       msleep(20000);
+
        retval = gb_control_bundle_activate(bundle->intf->control, bundle->id);
        if (retval) {
                pm_runtime_put(&bundle->intf->dev);