diff --git a/PyFlow/App.py b/PyFlow/App.py
index 1440becd..90331e37 100644
--- a/PyFlow/App.py
+++ b/PyFlow/App.py
@@ -701,7 +701,7 @@ def instance(parent=None, software=""):
                         showToolAction.setIcon(icon)
                     showToolAction.triggered.connect(
                         lambda pkgName=packageName, toolName=ToolClass.name(): instance.invokeDockToolByName(
-                            pkgName, toolName
+                            packageName, toolName
                         )
                     )