diff --git a/csaxs_bec/bec_ipython_client/plugins/tool_box/debug_tools.py b/csaxs_bec/bec_ipython_client/plugins/tool_box/debug_tools.py
index 3399380..fad4461 100644
--- a/csaxs_bec/bec_ipython_client/plugins/tool_box/debug_tools.py
+++ b/csaxs_bec/bec_ipython_client/plugins/tool_box/debug_tools.py
@@ -165,8 +165,8 @@ class DebugTools:
         mcs_data = scan_data.devices.mcs
         print(mcs_data)
 
-        shape = mcs_data._info["mca0"]["value"]["shape"]
-        expected_shape = (cycles, burst_frames)
+        shape = mcs_data._info["mcs_mca_mca1"]["value"]["shape"]
+        expected_shape = (cycles * burst_frames,)
         # Assert will raise an error if the shapes do not match
         assert (
             shape == expected_shape