diff --git a/CHANGELOG.md b/CHANGELOG.md
index 42df219..21869bb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,12 @@ that may never merge. They are not releases and are not listed here.
 
 ## Unreleased
 
+- **Breaking**: `--eta-type`, `--navigation-profile` and `--origin` removed
+  from `mapbox search category`. The category endpoint does not currently
+  return an ETA, so the flags were accepted but had no effect. A script
+  that passes them now fails with an unknown-argument error; drop the
+  flags. `mapbox search forward` keeps them. (#76)
+
 - **Breaking**: `--exclude-fields` removed from `mapbox search forward`
   and `mapbox search category`. The `photos` and `reviews` fields it
   omitted are only returned for accounts with a specific data provider
diff --git a/custom-openapi/search/openapi/search.yaml b/custom-openapi/search/openapi/search.yaml
index 69ad746..f229d00 100644
--- a/custom-openapi/search/openapi/search.yaml
+++ b/custom-openapi/search/openapi/search.yaml
@@ -488,31 +488,6 @@ paths:
           description: "When SAR is enabled, maximum detour allowed in estimated minutes from the route."
           schema:
             type: number
-        - name: "eta_type"
-          in: query
-          required: false
-          description: >-
-            Enable ETA calculation in the response. The only allowed value
-            is `navigation`; also requires `navigation_profile` and either
-            `origin` or `proximity`.
-          schema:
-            type: string
-            enum: ["navigation"]
-        - name: "navigation_profile"
-          in: query
-          required: false
-          description: "When ETA calculation is enabled, the routing profile to use."
-          schema:
-            type: string
-            enum: ["driving", "walking", "cycling"]
-        - name: "origin"
-          in: query
-          required: false
-          description: >-
-            When ETA calculation is enabled, the location to calculate
-            distance from, as `longitude,latitude`.
-          schema:
-            type: string
       responses:
         "200":
           description: A GeoJSON FeatureCollection of matching features.
diff --git a/docs/commands.md b/docs/commands.md
index 87ade35..0b8c45b 100644
--- a/docs/commands.md
+++ b/docs/commands.md
@@ -1498,7 +1498,6 @@ here enforces it before the request goes out.
 | `--language <tag>` | ISO language code. |
 | `--sar-type isochrone` + `--route <polyline>` + `--route-geometry <polyline\|polyline6>` | Search-along-route: results near a route rather than a point. |
 | `--time-deviation <minutes>` | With SAR, maximum detour allowed from the route. |
-| `--eta-type navigation` + `--navigation-profile <driving\|walking\|cycling>` + `--origin <lon,lat>` | Include an ETA in each result, from `--origin` (or `--proximity`) to it. |
 
 #### Examples