diff --git a/openpype/hosts/maya/api/customize.py b/openpype/hosts/maya/api/customize.py
index 54c058aa753..2e10de13515 100644
--- a/openpype/hosts/maya/api/customize.py
+++ b/openpype/hosts/maya/api/customize.py
@@ -95,21 +95,29 @@ def override_toolbox_ui():
     # Create our controls
     background_color = (0.267, 0.267, 0.267)
     controls = []
-    controls.append(
-        mc.iconTextButton(
-            "pype_toolbox_lookmanager",
-            annotation="Look Manager",
-            label="Look Manager",
-            image=os.path.join(icons, "lookmanager.png"),
-            command=lambda: host_tools.show_look_assigner(
-                parent=pipeline._parent
-            ),
-            bgc=background_color,
-            width=icon_size,
-            height=icon_size,
-            parent=parent
+    look_assigner = None
+    try:
+        look_assigner = host_tools.get_tool_by_name(
+            "lookassigner",
+            parent=pipeline._parent
+        )
+    except Exception as exc:
+        log.warning("Couldn't create Look assigner window.")
+
+    if look_assigner is not None:
+        controls.append(
+            mc.iconTextButton(
+                "pype_toolbox_lookmanager",
+                annotation="Look Manager",
+                label="Look Manager",
+                image=os.path.join(icons, "lookmanager.png"),
+                command=host_tools.show_look_assigner,
+                bgc=background_color,
+                width=icon_size,
+                height=icon_size,
+                parent=parent
+            )
         )
-    )
 
     controls.append(
         mc.iconTextButton(