diff --git a/qt/applications/workbench/workbench/plotting/config.py b/qt/applications/workbench/workbench/plotting/config.py
index 88f416704d1b9906b94cd926fb2bf64c521a2c9e..06bf20cf73fbc8db8cef9b248efdf50b37b539ac 100644
--- a/qt/applications/workbench/workbench/plotting/config.py
+++ b/qt/applications/workbench/workbench/plotting/config.py
@@ -30,7 +30,8 @@ MPL_BACKEND = 'module://workbench.plotting.backend_workbench'
 
 # Our style defaults
 DEFAULT_RCPARAMS = {
-    'figure.facecolor':  'w'
+    'figure.facecolor':  'w',
+    'figure.max_open_warning': 200
 }