diff --git a/logger.go b/logger.go
index 9bfdf57..3771a28 100644
--- a/logger.go
+++ b/logger.go
@@ -22,22 +22,17 @@ type Logger interface {
 
 type logger struct{}
 
-func (l *logger) Trace(args ...interface{})
-func (l *logger) Tracef(format string, args ...interface{})
-
-func (l *logger) Debug(args ...interface{})
-func (l *logger) Debugf(format string, args ...interface{})
-
-func (l *logger) Info(args ...interface{})
-func (l *logger) Infof(format string, args ...interface{})
-
-func (l *logger) Error(args ...interface{})
-func (l *logger) Errorf(format string, args ...interface{})
-
-func (l *logger) Fatal(args ...interface{})
-func (l *logger) Fatalf(format string, args ...interface{})
-
-func (l *logger) Panic(args ...interface{})
-func (l *logger) Panicf(format string, args ...interface{})
+func (l *logger) Trace(args ...interface{})                 {}
+func (l *logger) Tracef(format string, args ...interface{}) {}
+func (l *logger) Debug(args ...interface{})                 {}
+func (l *logger) Debugf(format string, args ...interface{}) {}
+func (l *logger) Info(args ...interface{})                  {}
+func (l *logger) Infof(format string, args ...interface{})  {}
+func (l *logger) Error(args ...interface{})                 {}
+func (l *logger) Errorf(format string, args ...interface{}) {}
+func (l *logger) Fatal(args ...interface{})                 {}
+func (l *logger) Fatalf(format string, args ...interface{}) {}
+func (l *logger) Panic(args ...interface{})                 {}
+func (l *logger) Panicf(format string, args ...interface{}) {}
 
 var DefaultLogger = &logger{}