diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c
index 33b5b9ff19..c189147f91 100644
--- a/hw/usb/host-libusb.c
+++ b/hw/usb/host-libusb.c
@@ -1522,7 +1522,7 @@ static void usb_host_auto_check(void *unused)
 {
     struct USBHostDevice *s;
     struct USBAutoFilter *f;
-    libusb_device **devs;
+    libusb_device **devs = NULL;
     struct libusb_device_descriptor ddesc;
     int unconnected = 0;
     int i, n;
@@ -1623,7 +1623,7 @@ static void usb_host_auto_check(void *unused)
 
 void usb_host_info(Monitor *mon, const QDict *qdict)
 {
-    libusb_device **devs;
+    libusb_device **devs = NULL;
     struct libusb_device_descriptor ddesc;
     char port[16];
     int i, n;