diff --git a/changelog.d/3-bug-fixes/use-proper-api-in-integration-testsuite b/changelog.d/3-bug-fixes/use-proper-api-in-integration-testsuite
new file mode 100644
index 0000000000..522fc02ee7
--- /dev/null
+++ b/changelog.d/3-bug-fixes/use-proper-api-in-integration-testsuite
@@ -0,0 +1 @@
+addClient used the internal brig API in the integration testsuite when it should use the public one
diff --git a/integration/test/API/Brig.hs b/integration/test/API/Brig.hs
index 871763d6cd..a3e3e449f4 100644
--- a/integration/test/API/Brig.hs
+++ b/integration/test/API/Brig.hs
@@ -172,15 +172,13 @@ instance Default AddClient where
         acapabilities = Just ["legalhold-implicit-consent"]
       }
 
--- | https://staging-nginz-https.zinfra.io/api-internal/swagger-ui/brig/#/brig/post_i_clients__uid_
 addClient ::
   (HasCallStack, MakesValue user) =>
   user ->
   AddClient ->
   App Response
 addClient user args = do
-  uid <- objId user
-  req <- baseRequest user Brig Unversioned $ "/i/clients/" <> uid
+  req <- baseRequest user Brig Versioned $ "/clients/"
   pks <- maybe (fmap pure getPrekey) pure args.prekeys
   lpk <- maybe getLastPrekey pure args.lastPrekey
   submit "POST" $
diff --git a/integration/test/API/BrigInternal.hs b/integration/test/API/BrigInternal.hs
index 03903bfdfe..889427d70a 100644
--- a/integration/test/API/BrigInternal.hs
+++ b/integration/test/API/BrigInternal.hs
@@ -1,5 +1,6 @@
 module API.BrigInternal where
 
+import API.Brig (AddClient (..))
 import API.Common
 import qualified Data.Aeson as Aeson
 import Data.Aeson.Types (Pair)
@@ -27,6 +28,28 @@ instance Default CreateUser where
         supportedProtocols = Nothing
       }
 
+iAddClient ::
+  (HasCallStack, MakesValue user) =>
+  user ->
+  AddClient ->
+  App Response
+iAddClient user args = do
+  uid <- objId user
+  req <- baseRequest user Brig Unversioned $ "/i/clients/" <> uid
+  pks <- maybe (fmap pure getPrekey) pure args.prekeys
+  lpk <- maybe getLastPrekey pure args.lastPrekey
+  submit "POST" $
+    req
+      & addJSONObject
+        [ "prekeys" .= pks,
+          "lastkey" .= lpk,
+          "type" .= args.ctype,
+          "label" .= args.clabel,
+          "model" .= args.model,
+          "password" .= args.password,
+          "capabilities" .= args.acapabilities
+        ]
+
 createUser :: (HasCallStack, MakesValue domain) => domain -> CreateUser -> App Response
 createUser domain cu = do
   re <- randomEmail
diff --git a/integration/test/Test/Demo.hs b/integration/test/Test/Demo.hs
index b8a7e6c815..368f018e4c 100644
--- a/integration/test/Test/Demo.hs
+++ b/integration/test/Test/Demo.hs
@@ -17,7 +17,7 @@ testCantDeleteLHClient :: HasCallStack => App ()
 testCantDeleteLHClient = do
   user <- randomUser OwnDomain def
   client <-
-    BrigP.addClient user def {BrigP.ctype = "legalhold", BrigP.internal = True}
+    BrigI.iAddClient user def {BrigP.ctype = "legalhold", BrigP.internal = True}
       >>= getJSON 201
 
   bindResponse (BrigP.deleteClient user client) $ \resp -> do