diff --git a/grudge/eager.py b/grudge/eager.py
index 27125027ae0594858a777a86b0c1b8fd33203ddd..2000ef0cd0de44f6d7d74b3061179d0a9016dc93 100644
--- a/grudge/eager.py
+++ b/grudge/eager.py
@@ -48,7 +48,7 @@ class EagerDGDiscretization(DGDiscretizationWithBoundaries):
     def interp(self, src, tgt, vec):
         from warnings import warn
         warn("using 'interp' is deprecated, use 'project' instead.",
-+                DeprecationWarning, stacklevel=2)
+                DeprecationWarning, stacklevel=2)
 
         return self.project(src, tgt, vec)