diff --git a/agent/utils/nginx/components/server.go b/agent/utils/nginx/components/server.go
index 3bd0f1f243c5..eab94b5af8f6 100644
--- a/agent/utils/nginx/components/server.go
+++ b/agent/utils/nginx/components/server.go
@@ -487,7 +487,7 @@ func (s *Server) AddHTTP2HTTPS(httpsPort int) {
 	}
 
 	newDir.Block = block
-	s.UpdateDirectiveBySecondKey("if", " ($scheme", newDir)
+	s.UpdateDirectiveBySecondKey("if", "($scheme", newDir)
 }
 
 func (s *Server) UpdateAllowIPs(ips []string) {