diff --git a/README.md b/README.md
index 7056d3e..79c7d97 100644
--- a/README.md
+++ b/README.md
@@ -177,6 +177,7 @@ const locationDump = await getLocationDump({
 
 * `maximumStopOverCount: (optional; non-negative integer)` - Maximum number of stopovers
 * `airlinesFilter: (optional; object)` - Either *excludes* or *includes* the specified airlines. The `airlinesFilter` object has two properties: `airlines` (an `array` of `IATA` codes) and `type` (an `AIRLINES_FILTER_TYPE` value).
+* `partner: (optional; string)` - The Skypicker Partner ID assigned to your account. Use `picky` for testing.
 
 ```javascript
 {
diff --git a/src/client.js b/src/client.js
index c575d7f..dd1c475 100644
--- a/src/client.js
+++ b/src/client.js
@@ -149,6 +149,7 @@ const searchFlights = ({
   priceRange,
   maximumStopOverCount,
   airlinesFilter,
+  partner,
   locale,
   offset,
   limit,
@@ -167,6 +168,7 @@ const searchFlights = ({
       priceRange,
       maximumStopOverCount,
       airlinesFilter,
+      partner,
       locale,
       offset,
       limit,
diff --git a/src/flightSearchParameterBuilder.js b/src/flightSearchParameterBuilder.js
index f382b45..527db89 100644
--- a/src/flightSearchParameterBuilder.js
+++ b/src/flightSearchParameterBuilder.js
@@ -55,6 +55,7 @@ const buildFlightSearchParameters = ({
   priceRange,
   maximumStopOverCount,
   airlinesFilter,
+  partner,
   locale,
   offset,
   limit,
@@ -63,6 +64,7 @@ const buildFlightSearchParameters = ({
   const parameters = {
     flyFrom: departureIdentifier,
     to: arrivalIdentifier,
+    partner,
     locale,
     offset,
     limit,