diff --git a/ultralytics/utils/__init__.py b/ultralytics/utils/__init__.py
index 5fc0c71b724..ddc9ba3f896 100644
--- a/ultralytics/utils/__init__.py
+++ b/ultralytics/utils/__init__.py
@@ -212,7 +212,7 @@ def decorator(func):
         def wrapper(*args, **kwargs):
             """Sets rc parameters and backend, calls the original function, and restores the settings."""
             original_backend = plt.get_backend()
-            if backend != original_backend:
+            if backend.lower() != original_backend.lower():
                 plt.close("all")  # auto-close()ing of figures upon backend switching is deprecated since 3.8
                 plt.switch_backend(backend)