diff --git a/src/PIL/ImageGrab.py b/src/PIL/ImageGrab.py
index 1355a243ba0..2c4ac12c61f 100644
--- a/src/PIL/ImageGrab.py
+++ b/src/PIL/ImageGrab.py
@@ -167,7 +167,7 @@ def grabclipboard():
             ]
             if any(e in err for e in allowed_errors):
                 return None
-            msg = f"{args[0]} error: {err.strip() if err else 'Unkown error'}"
+            msg = f"{args[0]} error: {err.strip() if err else 'Unknown error'}"
             raise ChildProcessError(msg)
 
         data = io.BytesIO(p.stdout)