diff --git a/.travis.yml b/.travis.yml
index f9e241d7..a765f37f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,8 +10,6 @@ go:
   - master
 
 matrix:
-  allow_failures:
-    - go: master
   fast_finish: true
 
 git:
diff --git a/debug.go b/debug.go
index 4fd23fa1..c5e65b22 100644
--- a/debug.go
+++ b/debug.go
@@ -8,6 +8,7 @@ import (
 	"bytes"
 	"fmt"
 	"html/template"
+	"os"
 	"runtime"
 	"strconv"
 	"strings"
@@ -50,7 +51,7 @@ func debugPrintLoadTemplate(tmpl *template.Template) {
 
 func debugPrint(format string, values ...interface{}) {
 	if IsDebugging() {
-		fmt.Printf("[GIN-debug] "+format, values...)
+		fmt.Fprintf(os.Stderr, "[GIN-debug] "+format, values...)
 	}
 }
 
diff --git a/debug_test.go b/debug_test.go
index c8a010ff..97ff166b 100644
--- a/debug_test.go
+++ b/debug_test.go
@@ -90,8 +90,7 @@ func TestDebugPrintWARNINGDefault(t *testing.T) {
 		SetMode(TestMode)
 	})
 	m, e := getMinVer(runtime.Version())
-	assert.Nil(t, e)
-	if m <= ginSupportMinGoVer {
+	if e == nil && m <= ginSupportMinGoVer {
 		assert.Equal(t, "[GIN-debug] [WARNING] Now Gin requires Go 1.6 or later and Go 1.7 will be required soon.\n\n[GIN-debug] [WARNING] Creating an Engine instance with the Logger and Recovery middleware already attached.\n\n", re)
 	} else {
 		assert.Equal(t, "[GIN-debug] [WARNING] Creating an Engine instance with the Logger and Recovery middleware already attached.\n\n", re)