diff --git a/src/components/syncPlay/groupSelectionMenu.js b/src/components/syncPlay/groupSelectionMenu.js
index 067100ad73..48b22261f4 100644
--- a/src/components/syncPlay/groupSelectionMenu.js
+++ b/src/components/syncPlay/groupSelectionMenu.js
@@ -37,7 +37,7 @@ function showNewJoinGroupSelection (button, user, apiClient) {
         console.debug('No item is currently playing.');
     }
 
-    apiClient.sendSyncPlayCommand(sessionId, 'ListGroups').then(function (response) {
+    apiClient.sendSyncPlayCommand('ListGroups').then(function (response) {
         response.json().then(function (groups) {
             var menuItems = groups.map(function (group) {
                 return {
@@ -83,9 +83,9 @@ function showNewJoinGroupSelection (button, user, apiClient) {
 
             actionsheet.show(menuOptions).then(function (id) {
                 if (id == 'new-group') {
-                    apiClient.sendSyncPlayCommand(sessionId, 'NewGroup');
+                    apiClient.sendSyncPlayCommand('NewGroup');
                 } else {
-                    apiClient.sendSyncPlayCommand(sessionId, 'JoinGroup', {
+                    apiClient.sendSyncPlayCommand('JoinGroup', {
                         GroupId: id,
                         PlayingItemId: playingItemId
                     });
@@ -140,7 +140,7 @@ function showLeaveGroupSelection (button, user, apiClient) {
 
     actionsheet.show(menuOptions).then(function (id) {
         if (id == 'leave-group') {
-            apiClient.sendSyncPlayCommand(sessionId, 'LeaveGroup');
+            apiClient.sendSyncPlayCommand('LeaveGroup');
         }
     }).catch((error) => {
         console.error('SyncPlay: unexpected error showing group menu:', error);
diff --git a/src/components/syncPlay/syncPlayManager.js b/src/components/syncPlay/syncPlayManager.js
index 6116884d7c..860e3edcd4 100644
--- a/src/components/syncPlay/syncPlayManager.js
+++ b/src/components/syncPlay/syncPlayManager.js
@@ -139,7 +139,7 @@ class SyncPlayManager {
                     return;
                 }
 
-                apiClient.sendSyncPlayCommand(sessionId, 'UpdatePing', {
+                apiClient.sendSyncPlayCommand('UpdatePing', {
                     Ping: ping
                 });
             }
@@ -447,7 +447,7 @@ class SyncPlayManager {
                     if (!success) {
                         console.warning('Error reporting playback state to server. Joining group will fail.');
                     }
-                    apiClient.sendSyncPlayCommand(sessionId, 'JoinGroup', {
+                    apiClient.sendSyncPlayCommand('JoinGroup', {
                         GroupId: groupId,
                         PlayingItemId: playingItemId
                     });
@@ -658,8 +658,7 @@ class SyncPlayManager {
      */
     playRequest (player) {
         var apiClient = connectionManager.currentApiClient();
-        var sessionId = getActivePlayerId();
-        apiClient.sendSyncPlayCommand(sessionId, 'PlayRequest');
+        apiClient.sendSyncPlayCommand('PlayRequest');
     }
 
     /**
@@ -667,8 +666,7 @@ class SyncPlayManager {
      */
     pauseRequest (player) {
         var apiClient = connectionManager.currentApiClient();
-        var sessionId = getActivePlayerId();
-        apiClient.sendSyncPlayCommand(sessionId, 'PauseRequest');
+        apiClient.sendSyncPlayCommand('PauseRequest');
         // Pause locally as well, to give the user some little control
         playbackManager._localUnpause(player);
     }
@@ -678,8 +676,7 @@ class SyncPlayManager {
      */
     seekRequest (PositionTicks, player) {
         var apiClient = connectionManager.currentApiClient();
-        var sessionId = getActivePlayerId();
-        apiClient.sendSyncPlayCommand(sessionId, 'SeekRequest', {
+        apiClient.sendSyncPlayCommand('SeekRequest', {
             PositionTicks: PositionTicks
         });
     }