diff --git a/cmd/frostfs-adm/internal/modules/morph/netmap/epoch.go b/cmd/frostfs-adm/internal/modules/morph/netmap/epoch.go
index 5e4e9c725..5c5fa9988 100644
--- a/cmd/frostfs-adm/internal/modules/morph/netmap/epoch.go
+++ b/cmd/frostfs-adm/internal/modules/morph/netmap/epoch.go
@@ -31,7 +31,8 @@ func ForceNewEpochCmd(cmd *cobra.Command, _ []string) error {
 	}
 
 	bw := io.NewBufBinWriter()
-	if err := helper.EmitNewEpochCall(bw, wCtx, nmHash, viper.GetInt64(commonflags.DeltaFlag)); err != nil {
+	delta, _ := cmd.Flags().GetInt64(commonflags.DeltaFlag)
+	if err := helper.EmitNewEpochCall(bw, wCtx, nmHash, delta); err != nil {
 		return err
 	}
 
diff --git a/cmd/frostfs-adm/internal/modules/morph/netmap/root.go b/cmd/frostfs-adm/internal/modules/morph/netmap/root.go
index 0288bcdc5..3300db36a 100644
--- a/cmd/frostfs-adm/internal/modules/morph/netmap/root.go
+++ b/cmd/frostfs-adm/internal/modules/morph/netmap/root.go
@@ -22,7 +22,6 @@ var (
 		PreRun: func(cmd *cobra.Command, _ []string) {
 			_ = viper.BindPFlag(commonflags.AlphabetWalletsFlag, cmd.Flags().Lookup(commonflags.AlphabetWalletsFlag))
 			_ = viper.BindPFlag(commonflags.EndpointFlag, cmd.Flags().Lookup(commonflags.EndpointFlag))
-			_ = viper.BindPFlag(commonflags.DeltaFlag, cmd.Flags().Lookup(commonflags.DeltaFlag))
 		},
 		RunE: ForceNewEpochCmd,
 	}