diff --git a/src/west/manifest.py b/src/west/manifest.py
index e51261e..f62e5fc 100644
--- a/src/west/manifest.py
+++ b/src/west/manifest.py
@@ -1199,7 +1199,7 @@ class Project:
     def is_up_to_date(self, cwd=None):
         '''Check if the project HEAD is up to date with the manifest.
 
-        This is equivalent to ``is_up_to_date_with(self,revision,
+        This is equivalent to ``is_up_to_date_with(self.revision,
         cwd=cwd)``.
 
         :param cwd: directory to run command in (default: