diff --git a/pynxtools_mpes/reader.py b/pynxtools_mpes/reader.py
index 51fc640..5238258 100644
--- a/pynxtools_mpes/reader.py
+++ b/pynxtools_mpes/reader.py
@@ -287,7 +287,7 @@ class MPESReader(BaseReader):
     # pylint: disable=too-few-public-methods
 
     # Whitelist for the NXDLs that the reader supports and can process
-    supported_nxdls = ["NXmpes"]
+    supported_nxdls = ["NXmpes", "NXmpes_arpes"]
 
     def read(  # pylint: disable=too-many-branches
         self,