diff --git a/data/fields/activity.json b/data/fields/activity.json
index ed431990..ba47ab2f 100644
--- a/data/fields/activity.json
+++ b/data/fields/activity.json
@@ -12,8 +12,8 @@
         "options": {
             "hiking": "Hiking",
             "bicycle": "Cycling",
-            "mtb": "Mountainbiking",
-            "horse": "Horseriding",
+            "mtb": "Mountain Biking",
+            "horse": "Horseback Riding",
             "Ski": "Skiing"
         }
     }
diff --git a/interim/source_strings.yaml b/interim/source_strings.yaml
index 4dd40c5d..74ab045a 100644
--- a/interim/source_strings.yaml
+++ b/interim/source_strings.yaml
@@ -104,8 +104,8 @@ en:
           Ski: Skiing
           bicycle: Cycling
           hiking: Hiking
-          horse: Horseriding
-          mtb: Mountainbiking
+          horse: Horseback Riding
+          mtb: Mountain Biking
         terms: '[translate with synonyms or related terms for ''Activity'', separated by commas]'
       addr/interpolation:
         # 'addr:interpolation=*'
@@ -6962,7 +6962,7 @@ en:
         name: Lighthouse
         terms: '<translate with synonyms or related terms for ''Lighthouse'', separated by commas>'
       man_made/manhole:
-        # 'manhole=*\n\nTranslate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).'
+        # 'man_made=manhole\n\nTranslate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).'
         name: Manhole
         # 'terms: cover,hole,sewer,sewage,telecom'
         terms: '<translate with synonyms or related terms for ''Manhole'', separated by commas>'