diff --git a/sumpy/expansion/local.py b/sumpy/expansion/local.py
index cfb660e7f0a733bf33fd89b7e8e479c4f6f92647..e2150bfe87f834d98f496aae3e19ed88262abe30 100644
--- a/sumpy/expansion/local.py
+++ b/sumpy/expansion/local.py
@@ -175,7 +175,7 @@ class VolumeTaylorLocalExpansionBase(LocalExpansionBase):
                                   self.get_coefficient_identifiers())
 
             # Create a expansion terms wrangler for derivatives up to order
-            # (tgt order)+(src order).
+            # (tgt order)+(src order) including a corresponding reduction matrix
             tgtplusderiv_exp_terms_wrangler = \
                 src_expansion.expansion_terms_wrangler.copy(
                         order=self.order + src_expansion.order, max_mi=tuple(max_mi))