diff --git a/source_strings.yaml b/source_strings.yaml
index b494f2a9..74b4ce56 100644
--- a/source_strings.yaml
+++ b/source_strings.yaml
@@ -7705,9 +7705,9 @@ en:
         terms: <translate with synonyms or related terms for 'Theater', separated by commas>
       amenity/theatre/type/amphi:
         # amenity=theatre + theatre:type=amphi | Translate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).
-        name: Amphitheatre
+        name: Amphitheater
         # 'terms: open air,outdoor,greek,ampi'
-        terms: <translate with synonyms or related terms for 'Amphitheatre', separated by commas>
+        terms: <translate with synonyms or related terms for 'Amphitheater', separated by commas>
       amenity/ticket_validator:
         # amenity=ticket_validator | Ticket Puncher, Punching Machine, Ticket Marker | Translate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).
         name: Ticket Validator