diff --git a/doc/API.md b/doc/API.md
index d6dd969..495f278 100644
--- a/doc/API.md
+++ b/doc/API.md
@@ -87,13 +87,6 @@ possible side-effects
       SELECT geocode_postalcode_polygons('11211', 'USA')
       `````
 
-  * `geocode_postalcode_polygons(code text)` **PROBABLY WE DON'T WANT TO PUBLISH THIS ONE**
-    * **Return type:** `polygon` 
-    * **Usage example:**
-      `````
-      SELECT geocode_postalcode_polygons('11211')
-      `````
-
   * `geocode_postalcode_points(code text, country text)`
     * **Return type:** `point`
     * **Usage example:**
@@ -101,20 +94,6 @@ possible side-effects
       SELECT geocode_postalcode_points('11211', 'USA')
       `````
 
-  * `geocode_postalcode_points(code integer, country text)`
-    * **Return type:** `point`
-    * **Usage example:**
-        `````
-      SELECT geocode_postalcode_points(11211, 'USA')
-      `````
-
-  * `geocode_postalcode_points(code text)`
-    * **Return type:** `point`
-    * **Usage example:**
-        `````
-      SELECT geocode_postalcode_points('11211')
-      `````
-
 
 ### IP addresses Geocoder
 * Functions: