diff --git a/aeon/io/reader.py b/aeon/io/reader.py
index 14d0f700..035e22a3 100644
--- a/aeon/io/reader.py
+++ b/aeon/io/reader.py
@@ -212,7 +212,7 @@ def read(self, file):
         specified unique identifier.
         """
         data = super().read(file)
-        data = data[data.event == self.value]
+        data = data[(data.event & self.value) == self.value]
         data["event"] = self.tag
         return data