diff --git a/src/prompt_toolkit/widgets/base.py b/src/prompt_toolkit/widgets/base.py
index e2330e9e1..7f69e1230 100644
--- a/src/prompt_toolkit/widgets/base.py
+++ b/src/prompt_toolkit/widgets/base.py
@@ -208,7 +208,7 @@ def __init__(
         if input_processors is None:
             input_processors = []
 
-        # Writeable attributes.
+        # Writable attributes.
         self.completer = completer
         self.complete_while_typing = complete_while_typing
         self.lexer = lexer