1 files changed, 2 insertions, 2 deletions
diff --git a/BaseTools/Source/Python/Common/Uefi/Capsule/UefiCapsuleHeader.py b/BaseTools/Source/Python/Common/Uefi/Capsule/UefiCapsuleHeader.py
index 0e59028..7211714 100644
--- a/BaseTools/Source/Python/Common/Uefi/Capsule/UefiCapsuleHeader.py
+++ b/BaseTools/Source/Python/Common/Uefi/Capsule/UefiCapsuleHeader.py
@@ -91,9 +91,9 @@ class UefiCapsuleHeaderClass (object):
                      Buffer[0:self._StructSize]
                      )
         if HeaderSize < self._StructSize:
-            raise ValueError
+            raise ValueError("HeaderSize of {0} doesn't match _StructSize of {1}".format(HeaderSize, self._StructSize))
         if CapsuleImageSize != len (Buffer):
-            raise ValueError
+            raise ValueError("CapsuleImageSize of {0} doesn't match buffer length of {1}".format(CapsuleImageSize, len(Buffer)))
         self.CapsuleGuid         = uuid.UUID (bytes_le = CapsuleGuid)
         self.HeaderSize          = HeaderSize
         self.OemFlags            = Flags & 0xffff