diff --git a/lib/get_internal_attribute_history.py b/lib/get_internal_attribute_history.py
index 0d5f79e737efe01e6b297eab17dac56109eac678..b9f988827b0218b733b22c3ec3ee1e00fc530769 100755
--- a/lib/get_internal_attribute_history.py
+++ b/lib/get_internal_attribute_history.py
@@ -9,7 +9,7 @@ def get_internal_attribute_history(device: DeviceProxy, attribute_name: str, dep
     try:
         history = array(device.attribute_history(attr_name = attribute_name, depth = depth))
     except Exception as e:
-        raise ValueError("An exception was raised when attempting to access the internal history of the attribute '{}/{}'.".format(device.name(), attribute_name)) from e
+        raise ValueError("Cannot access the internal history of the attribute '{}/{}'.".format(device.name(), attribute_name)) from e
 
     history_values = array([entry.value for entry in history])
     history_values_transposed = history_values.transpose()