diff --git a/main.go b/main.go
index 7d13f37..63be7a5 100644
--- a/main.go
+++ b/main.go
@@ -89,9 +89,16 @@ func (l *Logger) Print(format string, v ...interface{}) {
 	fmt.Printf("%s: %s\n", time.Now().Format(dateTimeFormat), msg)
 }
 
+// CallerFilenameAndLineNumber ...
+func CallerFilenameAndLineNumber() (string, int) {
+	_, path, line, _ := runtime.Caller(1)
+	file := filepath.Base(path)
+	return file, line
+}
+
 // PrintTrace ...
 func (l *Logger) PrintTrace(format string, v ...interface{}) {
-	_, file, line, _ := runtime.Caller(1)
+	file, line := CallerFilenameAndLineNumber()
 
 	msg := fmt.Sprintf(format, v...)
 	fmt.Printf("%s: %s %d: %s\n", time.Now().Format(dateTimeFormat), file, line, msg)
@@ -106,7 +113,8 @@ func (l *Logger) Trace(format string, v ...interface{}) {
 	l.mu.Lock()
 	defer l.mu.Unlock()
 
-	_, file, line, _ := runtime.Caller(1)
+	file, line := CallerFilenameAndLineNumber()
+
 	msg := fmt.Sprintf(format, v...)
 	s := fmt.Sprintf("%s: %s %d: %s\n", time.Now().Format(dateTimeFormat), file, line, msg)