diff --git a/rest/engine.go b/rest/engine.go
index 1ae37ec6..d2e55f93 100644
--- a/rest/engine.go
+++ b/rest/engine.go
@@ -110,7 +110,7 @@ func (s *engine) bindRoute(fr featuredRoutes, router httpx.Router, metrics *stat
 		handler.TimeoutHandler(time.Duration(s.conf.Timeout)*time.Millisecond),
 		handler.RecoverHandler,
 		handler.MetricHandler(metrics),
-		handler.PrometheousHandler(route.Path),
+		handler.PromethousHandler(route.Path),
 		handler.MaxBytesHandler(s.conf.MaxBytes),
 		handler.GunzipHandler,
 	)
diff --git a/rest/handler/prometheoushandler.go b/rest/handler/prometheushandler.go
similarity index 94%
rename from rest/handler/prometheoushandler.go
rename to rest/handler/prometheushandler.go
index 17ef1a80..98253257 100644
--- a/rest/handler/prometheoushandler.go
+++ b/rest/handler/prometheushandler.go
@@ -31,7 +31,7 @@ var (
 	})
 )
 
-func PrometheousHandler(path string) func(http.Handler) http.Handler {
+func PromethousHandler(path string) func(http.Handler) http.Handler {
 	return func(next http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 			startTime := timex.Now()
diff --git a/rest/handler/prometheoushandler_test.go b/rest/handler/prometheushandler_test.go
similarity index 89%
rename from rest/handler/prometheoushandler_test.go
rename to rest/handler/prometheushandler_test.go
index 39bb11c0..7201363b 100644
--- a/rest/handler/prometheoushandler_test.go
+++ b/rest/handler/prometheushandler_test.go
@@ -9,7 +9,7 @@ import (
 )
 
 func TestPromMetricHandler(t *testing.T) {
-	promMetricHandler := PrometheousHandler("/user/login")
+	promMetricHandler := PromethousHandler("/user/login")
 	handler := promMetricHandler(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusOK)
 	}))
diff --git a/zrpc/internal/client.go b/zrpc/internal/client.go
index f0b48467..53addf18 100644
--- a/zrpc/internal/client.go
+++ b/zrpc/internal/client.go
@@ -74,7 +74,7 @@ func buildDialOptions(opts ...ClientOption) []grpc.DialOption {
 			clientinterceptors.TracingInterceptor,
 			clientinterceptors.DurationInterceptor,
 			clientinterceptors.BreakerInterceptor,
-			clientinterceptors.PrometheousInterceptor,
+			clientinterceptors.PrometheusInterceptor,
 			clientinterceptors.TimeoutInterceptor(clientOptions.Timeout),
 		),
 	}
diff --git a/zrpc/internal/clientinterceptors/prometheousinterceptor.go b/zrpc/internal/clientinterceptors/prometheusinterceptor.go
similarity index 92%
rename from zrpc/internal/clientinterceptors/prometheousinterceptor.go
rename to zrpc/internal/clientinterceptors/prometheusinterceptor.go
index cab6946f..a330410c 100644
--- a/zrpc/internal/clientinterceptors/prometheousinterceptor.go
+++ b/zrpc/internal/clientinterceptors/prometheusinterceptor.go
@@ -32,7 +32,7 @@ var (
 	})
 )
 
-func PrometheousInterceptor(ctx context.Context, method string, req, reply interface{},
+func PrometheusInterceptor(ctx context.Context, method string, req, reply interface{},
 	cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
 	startTime := timex.Now()
 	err := invoker(ctx, method, req, reply, cc, opts...)
diff --git a/zrpc/internal/clientinterceptors/prometheousinterceptor_test.go b/zrpc/internal/clientinterceptors/prometheusinterceptor_test.go
similarity index 89%
rename from zrpc/internal/clientinterceptors/prometheousinterceptor_test.go
rename to zrpc/internal/clientinterceptors/prometheusinterceptor_test.go
index 2ebc7b31..c7bdb237 100644
--- a/zrpc/internal/clientinterceptors/prometheousinterceptor_test.go
+++ b/zrpc/internal/clientinterceptors/prometheusinterceptor_test.go
@@ -26,7 +26,7 @@ func TestPromMetricInterceptor(t *testing.T) {
 	for _, test := range tests {
 		t.Run(test.name, func(t *testing.T) {
 			cc := new(grpc.ClientConn)
-			err := PrometheousInterceptor(context.Background(), "/foo", nil, nil, cc,
+			err := PrometheusInterceptor(context.Background(), "/foo", nil, nil, cc,
 				func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn,
 					opts ...grpc.CallOption) error {
 					return test.err
diff --git a/zrpc/internal/rpcserver.go b/zrpc/internal/rpcserver.go
index efb3cb71..bddec361 100644
--- a/zrpc/internal/rpcserver.go
+++ b/zrpc/internal/rpcserver.go
@@ -55,7 +55,7 @@ func (s *rpcServer) Start(register RegisterFn) error {
 		serverinterceptors.UnaryTracingInterceptor(s.name),
 		serverinterceptors.UnaryCrashInterceptor(),
 		serverinterceptors.UnaryStatInterceptor(s.metrics),
-		serverinterceptors.UnaryPrometheousInterceptor(),
+		serverinterceptors.UnaryPrometheusInterceptor(),
 	}
 	unaryInterceptors = append(unaryInterceptors, s.unaryInterceptors...)
 	streamInterceptors := []grpc.StreamServerInterceptor{
diff --git a/zrpc/internal/serverinterceptors/prometheousinterceptor.go b/zrpc/internal/serverinterceptors/prometheusinterceptor.go
similarity index 94%
rename from zrpc/internal/serverinterceptors/prometheousinterceptor.go
rename to zrpc/internal/serverinterceptors/prometheusinterceptor.go
index d9ad90a3..7925fcba 100644
--- a/zrpc/internal/serverinterceptors/prometheousinterceptor.go
+++ b/zrpc/internal/serverinterceptors/prometheusinterceptor.go
@@ -32,7 +32,7 @@ var (
 	})
 )
 
-func UnaryPrometheousInterceptor() grpc.UnaryServerInterceptor {
+func UnaryPrometheusInterceptor() grpc.UnaryServerInterceptor {
 	return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (
 		interface{}, error) {
 		startTime := timex.Now()
diff --git a/zrpc/internal/serverinterceptors/prometheousinterceptor_test.go b/zrpc/internal/serverinterceptors/prometheusinterceptor_test.go
similarity index 89%
rename from zrpc/internal/serverinterceptors/prometheousinterceptor_test.go
rename to zrpc/internal/serverinterceptors/prometheusinterceptor_test.go
index 14eacb60..9d31f4f9 100644
--- a/zrpc/internal/serverinterceptors/prometheousinterceptor_test.go
+++ b/zrpc/internal/serverinterceptors/prometheusinterceptor_test.go
@@ -9,7 +9,7 @@ import (
 )
 
 func TestUnaryPromMetricInterceptor(t *testing.T) {
-	interceptor := UnaryPrometheousInterceptor()
+	interceptor := UnaryPrometheusInterceptor()
 	_, err := interceptor(context.Background(), nil, &grpc.UnaryServerInfo{
 		FullMethod: "/",
 	}, func(ctx context.Context, req interface{}) (interface{}, error) {