diff --git a/src/prompt_toolkit/widgets/base.py b/src/prompt_toolkit/widgets/base.py
index cd5365278..51cfaa27f 100644
--- a/src/prompt_toolkit/widgets/base.py
+++ b/src/prompt_toolkit/widgets/base.py
@@ -441,7 +441,7 @@ def _get_text_fragments(self) -> StyleAndTextTuples:
         ) + (
             len(self.text) - get_cwidth(self.text)
         )
-        text = (f"{{:^{width}}}").format(self.text)
+        text = (f"{{:^{max(0,width)}}}").format(self.text)
 
         def handler(mouse_event: MouseEvent) -> None:
             if (