diff --git a/src/xrt/state_trackers/prober/p_libuvc.c b/src/xrt/state_trackers/prober/p_libuvc.c
index 70030e9e6..256e41aec 100644
--- a/src/xrt/state_trackers/prober/p_libuvc.c
+++ b/src/xrt/state_trackers/prober/p_libuvc.c
@@ -52,7 +52,7 @@ p_libuvc_probe(struct prober* p)
 		P_ERROR(p, "\tFailed to enumerate uvc devices\n");
 		return -1;
 	}
-
+	p->uvc.count = 0;
 	// Count the number of UVC devices.
 	while (p->uvc.list != NULL && p->uvc.list[p->uvc.count] != NULL) {
 		p->uvc.count++;