diff --git a/nodebuilder/blob/cmd/blob.go b/nodebuilder/blob/cmd/blob.go
index 504533d2fc..17eec5bbf1 100644
--- a/nodebuilder/blob/cmd/blob.go
+++ b/nodebuilder/blob/cmd/blob.go
@@ -43,11 +43,11 @@ var getCmd = &cobra.Command{
 	Short: "Returns the blob for the given namespace by commitment at a particular height.\n" +
 		"Note:\n* Both namespace and commitment input parameters are expected to be in their hex representation.",
 	PreRunE: func(_ *cobra.Command, args []string) error {
-		if !strings.HasPrefix(args[1], "0x") {
-			return fmt.Errorf("only hex namespace is supported")
+		if !strings.HasPrefix(args[0], "0x") {
+			args[0] = "0x" + args[0]
 		}
-		if !strings.HasPrefix(args[2], "0x") {
-			return fmt.Errorf("only hex commitment is supported")
+		if !strings.HasPrefix(args[1], "0x") {
+			args[1] = "0x" + args[1]
 		}
 		return nil
 	},
@@ -84,8 +84,11 @@ var getAllCmd = &cobra.Command{
 	Short: "Returns all blobs for the given namespace at a particular height.\n" +
 		"Note:\n* Namespace input parameter is expected to be in its hex representation.",
 	PreRunE: func(_ *cobra.Command, args []string) error {
+		if !strings.HasPrefix(args[0], "0x") {
+			args[0] = "0x" + args[0]
+		}
 		if !strings.HasPrefix(args[1], "0x") {
-			return fmt.Errorf("only hex namespace is supported")
+			args[1] = "0x" + args[1]
 		}
 		return nil
 	},
@@ -136,7 +139,10 @@ var submitCmd = &cobra.Command{
 	},
 	PreRunE: func(_ *cobra.Command, args []string) error {
 		if !strings.HasPrefix(args[0], "0x") {
-			return fmt.Errorf("only hex namespace is supported")
+			args[0] = "0x" + args[0]
+		}
+		if !strings.HasPrefix(args[1], "0x") {
+			args[1] = "0x" + args[1]
 		}
 		return nil
 	},
@@ -235,11 +241,11 @@ var getProofCmd = &cobra.Command{
 	Short: "Retrieves the blob in the given namespaces at the given height by commitment and returns its Proof.\n" +
 		"Note:\n* Both namespace and commitment input parameters are expected to be in their hex representation.",
 	PreRunE: func(_ *cobra.Command, args []string) error {
-		if !strings.HasPrefix(args[1], "0x") {
-			return fmt.Errorf("only hex namespace is supported")
+		if !strings.HasPrefix(args[0], "0x") {
+			args[0] = "0x" + args[0]
 		}
-		if !strings.HasPrefix(args[2], "0x") {
-			return fmt.Errorf("only hex commitment is supported")
+		if !strings.HasPrefix(args[1], "0x") {
+			args[1] = "0x" + args[1]
 		}
 		return nil
 	},