diff --git a/nodebuilder/core/flags.go b/nodebuilder/core/flags.go
index 97b0757d23..24d5bcf367 100644
--- a/nodebuilder/core/flags.go
+++ b/nodebuilder/core/flags.go
@@ -8,7 +8,8 @@ import (
 )
 
 var (
-	coreFlag           = "core.ip"
+	coreIPFlag         = "core.ip"
+	corePortFlag       = "core.port"
 	coreGRPCFlag       = "core.grpc.port"
 	coreTLS            = "core.tls"
 	coreXTokenPathFlag = "core.xtoken.path" //nolint:gosec
@@ -19,17 +20,23 @@ func Flags() *flag.FlagSet {
 	flags := &flag.FlagSet{}
 
 	flags.String(
-		coreFlag,
+		coreIPFlag,
 		"",
 		"Indicates node to connect to the given core node. "+
 			"Example: <ip>, 127.0.0.1. <dns>, subdomain.domain.tld "+
 			"Assumes gRPC port 9090 as default unless otherwise specified.",
 	)
 	flags.String(
-		coreGRPCFlag,
+		corePortFlag,
 		DefaultPort,
 		"Set a custom gRPC port for the core node connection. The --core.ip flag must also be provided.",
 	)
+	flags.String(
+		coreGRPCFlag,
+		"",
+		"Set a custom gRPC port for the core node connection.WARNING: --core.grpc.port is deprecated. "+
+			"Please use --core.port instead",
+	)
 	flags.Bool(
 		coreTLS,
 		false,
@@ -51,16 +58,20 @@ func ParseFlags(
 	cmd *cobra.Command,
 	cfg *Config,
 ) error {
-	coreIP := cmd.Flag(coreFlag).Value.String()
+	if cmd.Flag(coreGRPCFlag).Changed {
+		return fmt.Errorf("the flag is deprecated. Please use --core.port instead")
+	}
+
+	coreIP := cmd.Flag(coreIPFlag).Value.String()
 	if coreIP == "" {
-		if cmd.Flag(coreGRPCFlag).Changed {
+		if cmd.Flag(corePortFlag).Changed {
 			return fmt.Errorf("cannot specify gRPC port without specifying an IP address for --core.ip")
 		}
 		return nil
 	}
 
-	if cmd.Flag(coreGRPCFlag).Changed {
-		grpc := cmd.Flag(coreGRPCFlag).Value.String()
+	if cmd.Flag(corePortFlag).Changed {
+		grpc := cmd.Flag(corePortFlag).Value.String()
 		cfg.Port = grpc
 	}
 
diff --git a/nodebuilder/core/flags_test.go b/nodebuilder/core/flags_test.go
index a1a11a9a23..c76e0ae7f2 100644
--- a/nodebuilder/core/flags_test.go
+++ b/nodebuilder/core/flags_test.go
@@ -73,8 +73,8 @@ func TestParseFlags(t *testing.T) {
 			expectError: false,
 		},
 		{
-			name: "core.ip and core.grpc.port",
-			args: []string{"--core.ip=127.0.0.1", "--core.grpc.port=54321"},
+			name: "core.ip and core.port",
+			args: []string{"--core.ip=127.0.0.1", "--core.port=54321"},
 			inputCfg: Config{
 				Port: DefaultPort,
 			},
@@ -85,8 +85,8 @@ func TestParseFlags(t *testing.T) {
 			expectError: false,
 		},
 		{
-			name:        "core.grpc.port without core.ip",
-			args:        []string{"--core.grpc.port=54321"},
+			name:        "core.port without core.ip",
+			args:        []string{"--core.port=54321"},
 			expectedCfg: Config{},
 			expectError: true,
 		},