diff --git a/log.go b/log.go
index 9954119..60395ee 100644
--- a/log.go
+++ b/log.go
@@ -260,7 +260,6 @@ func formatHeader(calldepth int, skipfunc func(string) bool) string {
 	file, line := "???", 0
 	for i := 0; i < cnt; i++ {
 		frame, more := frames.Next()
-		fmt.Println(i, "\t", frame.File, frame.Line)
 		if !more || skipfunc == nil || !skipfunc(frame.File) {
 			file, line = frame.File, frame.Line
 			break