diff --git a/build/util/trim-daily-builds b/build/util/trim-daily-builds
index c28504d58..117667770 100755
--- a/build/util/trim-daily-builds
+++ b/build/util/trim-daily-builds
@@ -100,4 +100,4 @@ while (@b > $num_wanted) {
 	splice @b, $least_int, 1;
 }
 
-print "kept: @b\n";
+print STDERR "kept: @b\n";