diff --git a/check_home_assistant_state.py b/check_home_assistant_state.py
index 1c1aa8c..6da1237 100755
--- a/check_home_assistant_state.py
+++ b/check_home_assistant_state.py
@@ -64,7 +64,7 @@ class Entities(nagiosplugin.Resource):
                     name = (
                         state["attributes"]
                         .get("friendly_name", state["entity_id"])
-                        .translate({ord(c): "_" for c in "'-"})
+                        .translate({ord(c): "_" for c in "'="})
                     )
                 else:
                     name = state["entity_id"]