diff --git a/client/ayon_core/tools/tray/lib.py b/client/ayon_core/tools/tray/lib.py
index 5018dc6620..c26f4835b1 100644
--- a/client/ayon_core/tools/tray/lib.py
+++ b/client/ayon_core/tools/tray/lib.py
@@ -382,6 +382,9 @@ def make_sure_tray_is_running(
     args = get_ayon_launcher_args("tray", "--force")
     if env is None:
         env = os.environ.copy()
+    
+    # Make sure 'QT_API' is not set
+    env.pop("QT_API", None)
 
     if ayon_url:
         env["AYON_SERVER_URL"] = ayon_url