diff --git a/log/color.go b/log/color.go
index 01f3fbc..b40a81c 100644
--- a/log/color.go
+++ b/log/color.go
@@ -25,7 +25,9 @@ import (
 	"path/filepath"
 	"runtime"
 	"time"
+)
 
+import (
 	"github.com/mattn/go-isatty"
 )
 
@@ -85,7 +87,7 @@ func CPrintfln(color []byte, format string, args ...interface{}) {
 func CEPrintf(color []byte, format string, args ...interface{}) {
 	logStr := fmt.Sprintf(format, args...)
 	if isatty.IsTerminal(os.Stdout.Fd()) {
-		fmt.Fprint(os.Stderr, string(color)+funcFileLine()+"%s"+string(reset), logStr)
+		fmt.Fprintf(os.Stderr, string(color)+funcFileLine()+"%s"+string(reset), logStr)
 	} else {
 		fmt.Fprintf(os.Stderr, "%s", logStr)
 	}
@@ -94,7 +96,7 @@ func CEPrintf(color []byte, format string, args ...interface{}) {
 func CEPrintfln(color []byte, format string, args ...interface{}) {
 	logStr := fmt.Sprintf(format, args...)
 	if isatty.IsTerminal(os.Stdout.Fd()) {
-		fmt.Fprint(os.Stderr, string(color)+funcFileLine()+"%s"+string(reset)+"\n", logStr)
+		fmt.Fprintf(os.Stderr, string(color)+funcFileLine()+"%s"+string(reset)+"\n", logStr)
 	} else {
 		fmt.Fprintf(os.Stderr, "%s\n", logStr)
 	}
diff --git a/log/color_test.go b/log/color_test.go
index 5cc6f61..dc0c2b9 100644
--- a/log/color_test.go
+++ b/log/color_test.go
@@ -29,3 +29,7 @@ func TestColorLog(t *testing.T) {
 	CWarn("%s", "/test/group%3Dbjtelecom%26protocol%3Dpb%26role%3DSRT_Provider%26service%3Dshopping%26version%3D1.0.1")
 	CError("Error")
 }
+
+func TestCPrintfln(t *testing.T) {
+	CPrintfln(NRed, "%s", "/test/group%3Dbjtelecom%26protocol%3Dpb%26role%3DSRT_Provider%26service%3Dshopping%26version%3D1.0.1")
+}