diff --git a/beacon-chain/rpc/apimiddleware/endpoint_factory.go b/beacon-chain/rpc/apimiddleware/endpoint_factory.go
index 07922d0fcbdc..8a9583810d25 100644
--- a/beacon-chain/rpc/apimiddleware/endpoint_factory.go
+++ b/beacon-chain/rpc/apimiddleware/endpoint_factory.go
@@ -54,7 +54,7 @@ func (_ *BeaconEndpointFactory) Paths() []string {
 		"/eth/v2/debug/beacon/states/{state_id}",
 		"/eth/v1/debug/beacon/heads",
 		"/eth/v2/debug/beacon/heads",
-		"/eth/v1/debug/forkchoice",
+		"/eth/v1/debug/fork_choice",
 		"/eth/v1/config/fork_schedule",
 		"/eth/v1/config/deposit_contract",
 		"/eth/v1/config/spec",
@@ -207,7 +207,7 @@ func (_ *BeaconEndpointFactory) Create(path string) (*apimiddleware.Endpoint, er
 		endpoint.GetResponse = &ForkChoiceHeadsResponseJson{}
 	case "/eth/v2/debug/beacon/heads":
 		endpoint.GetResponse = &V2ForkChoiceHeadsResponseJson{}
-	case "/eth/v1/debug/forkchoice":
+	case "/eth/v1/debug/fork_choice":
 		endpoint.GetResponse = &ForkChoiceDumpJson{}
 		endpoint.Hooks = apimiddleware.HookCollection{
 			OnPreSerializeMiddlewareResponseIntoJson: prepareForkChoiceResponse,
diff --git a/proto/eth/service/beacon_debug_service.pb.go b/proto/eth/service/beacon_debug_service.pb.go
index 2803577b1040..e4874544b3c3 100755
--- a/proto/eth/service/beacon_debug_service.pb.go
+++ b/proto/eth/service/beacon_debug_service.pb.go
@@ -47,7 +47,7 @@ var file_proto_eth_service_beacon_debug_service_proto_rawDesc = []byte{
 	0x74, 0x6f, 0x1a, 0x1f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x65, 0x74, 0x68, 0x2f, 0x76, 0x32,
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@@ -85,25 +85,25 @@ var file_proto_eth_service_beacon_debug_service_proto_rawDesc = []byte{
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 }
 
 var file_proto_eth_service_beacon_debug_service_proto_goTypes = []interface{}{
diff --git a/proto/eth/service/beacon_debug_service.pb.gw.go b/proto/eth/service/beacon_debug_service.pb.gw.go
index 7be696f543cb..757db4f2c96c 100755
--- a/proto/eth/service/beacon_debug_service.pb.gw.go
+++ b/proto/eth/service/beacon_debug_service.pb.gw.go
@@ -511,7 +511,7 @@ var (
 
 	pattern_BeaconDebug_ListForkChoiceHeadsV2_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3, 2, 4, 2, 5}, []string{"internal", "eth", "v2", "debug", "beacon", "heads"}, ""))
 
-	pattern_BeaconDebug_GetForkChoice_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3, 2, 4}, []string{"internal", "eth", "v1", "debug", "forkchoice"}, ""))
+	pattern_BeaconDebug_GetForkChoice_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3, 2, 4}, []string{"internal", "eth", "v1", "debug", "fork_choice"}, ""))
 )
 
 var (
diff --git a/proto/eth/service/beacon_debug_service.proto b/proto/eth/service/beacon_debug_service.proto
index 64717cdfa9ab..8f1990a24277 100644
--- a/proto/eth/service/beacon_debug_service.proto
+++ b/proto/eth/service/beacon_debug_service.proto
@@ -77,7 +77,7 @@ service BeaconDebug {
   // This function is not a part of the official Beacon APIs.
   rpc GetForkChoice(google.protobuf.Empty) returns (v1.ForkChoiceDump) {
     option (google.api.http) = {
-      get: "/internal/eth/v1/debug/forkchoice"
+      get: "/internal/eth/v1/debug/fork_choice"
     };
   }
-}
\ No newline at end of file
+}