diff --git a/relay/adaptor/anthropic/main.go b/relay/adaptor/anthropic/main.go
index aa9e754f..a8de185c 100644
--- a/relay/adaptor/anthropic/main.go
+++ b/relay/adaptor/anthropic/main.go
@@ -4,6 +4,10 @@ import (
 	"bufio"
 	"encoding/json"
 	"fmt"
+	"io"
+	"net/http"
+	"strings"
+
 	"github.com/gin-gonic/gin"
 	"github.com/songquanpeng/one-api/common"
 	"github.com/songquanpeng/one-api/common/helper"
@@ -11,9 +15,6 @@ import (
 	"github.com/songquanpeng/one-api/common/logger"
 	"github.com/songquanpeng/one-api/relay/adaptor/openai"
 	"github.com/songquanpeng/one-api/relay/model"
-	"io"
-	"net/http"
-	"strings"
 )
 
 func stopReasonClaude2OpenAI(reason *string) string {
@@ -176,10 +177,10 @@ func StreamHandler(c *gin.Context, resp *http.Response) (*model.ErrorWithStatusC
 			if len(data) < 6 {
 				continue
 			}
-			if !strings.HasPrefix(data, "data: ") {
+			if !strings.HasPrefix(data, "data:") {
 				continue
 			}
-			data = strings.TrimPrefix(data, "data: ")
+			data = strings.TrimPrefix(data, "data:")
 			dataChan <- data
 		}
 		stopChan <- true
@@ -192,7 +193,7 @@ func StreamHandler(c *gin.Context, resp *http.Response) (*model.ErrorWithStatusC
 		select {
 		case data := <-dataChan:
 			// some implementations may add \r at the end of data
-			data = strings.TrimSuffix(data, "\r")
+			data = strings.TrimSpace(data)
 			var claudeResponse StreamResponse
 			err := json.Unmarshal([]byte(data), &claudeResponse)
 			if err != nil {