diff --git a/log.go b/log.go
index 2a4867f..62b8df2 100644
--- a/log.go
+++ b/log.go
@@ -70,12 +70,22 @@ func (log *Logger) SetLogLevel(newlv logLevel) (oldlv logLevel) {
 }
 
 func (log *Logger) Print(prefix string, v interface{}) {
-	preety, _ := json.Marshal(v)
-	log.logwrite(DEBUG, 3, prefix+"%s\n", preety)
+	var str = ""
+	if pkg, err := json.Marshal(v); err != nil {
+		str = err.Error()
+	} else {
+		str = string(pkg)
+	}
+	log.logwrite(DEBUG, 3, prefix+"%s\n", str)
 }
 
 func (log *Logger) PrintPretty(prefix string, v interface{}) {
-	preety, _ := json.MarshalIndent(v, "==", "    ")
+	var preety = ""
+	if pkg, err := json.MarshalIndent(v, "==", "  "); err != nil {
+		preety = err.Error()
+	} else {
+		preety = string(pkg)
+	}
 	log.logwrite(DEBUG, 3, prefix+"%s\n", preety)
 }