diff --git a/apps/cli/blob.py b/apps/cli/blob.py
index d5c7c14..cd3ed23 100644
--- a/apps/cli/blob.py
+++ b/apps/cli/blob.py
@@ -4,6 +4,6 @@ import re
 class Blob:
     def __init__(self, data):
         if type(data) is not str or re.search(r"^[0-9A-Fa-f]+$", data) is None:
-            raise ValueError("Non-Hex character found in txid.")
+            raise ValueError("Non-Hex character found in transaction.")
 
         self.data = data