diff --git a/clock.c b/clock.c
index 8eb3998..312db9d 100644
--- a/clock.c
+++ b/clock.c
@@ -356,13 +356,13 @@ void clock_path_delay(struct clock *c, struct timespec req, struct timestamp rx,
 	pd = tmv_div(pd, 2);
 
 	if (pd < 0) {
-		pr_debug("negative path delay %10lld", pd);
-		pr_debug("path_delay = (t2 - t3) + (t4 - t1)");
-		pr_debug("t2 - t3 = %+10lld", t2 - t3);
-		pr_debug("t4 - t1 = %+10lld", t4 - t1);
-		pr_debug("c1 %10lld", c1);
-		pr_debug("c2 %10lld", c2);
-		pr_debug("c3 %10lld", c3);
+		pr_warning("negative path delay %10lld", pd);
+		pr_warning("path_delay = (t2 - t3) + (t4 - t1)");
+		pr_warning("t2 - t3 = %+10lld", t2 - t3);
+		pr_warning("t4 - t1 = %+10lld", t4 - t1);
+		pr_warning("c1 %10lld", c1);
+		pr_warning("c2 %10lld", c2);
+		pr_warning("c3 %10lld", c3);
 		return;
 	}