diff --git a/grudge/interpolation.py b/grudge/interpolation.py
index e494c3d371cbf19f43ff09eb7c0ac52c69728163..61bdf1a133b984a6c26ebb26992e15368099b611 100644
--- a/grudge/interpolation.py
+++ b/grudge/interpolation.py
@@ -1,4 +1,6 @@
 """
+.. currentmodule:: grudge.op
+
 Interpolation
 -------------
 
diff --git a/grudge/projection.py b/grudge/projection.py
index 880340db61f2b5e9b8419dbd0302e92e5eec9d3e..3129253ca0b9c355334a452da4a60627dd5ea2cc 100644
--- a/grudge/projection.py
+++ b/grudge/projection.py
@@ -1,4 +1,6 @@
 """
+.. currentmodule:: grudge.op
+
 Projections
 -----------
 
diff --git a/grudge/reductions.py b/grudge/reductions.py
index 78162d651631855e00d19b0886115b912c1bf3f1..b8a8a868bf2549041205bb4b603d4033ab38f9f4 100644
--- a/grudge/reductions.py
+++ b/grudge/reductions.py
@@ -1,6 +1,5 @@
 """
-Reduction operations
-^^^^^^^^^^^^^^^^^^^^
+.. currentmodule:: grudge.op
 
 Nodal reductions
 ----------------
diff --git a/grudge/trace_pair.py b/grudge/trace_pair.py
index ad2e9c815f6b38d48f7dabf95314bdfceda553fc..a0667d056d3023baeecdec6a3240095489830eb4 100644
--- a/grudge/trace_pair.py
+++ b/grudge/trace_pair.py
@@ -1,3 +1,25 @@
+"""
+Trace Pairs
+^^^^^^^^^^^
+
+Container class
+---------------
+
+.. autoclass:: TracePair
+
+Boundary trace functions
+------------------------
+
+.. autofunction:: bdry_trace_pair
+.. autofunction:: bv_trace_pair
+
+Interior and cross-rank trace functions
+---------------------------------------
+
+.. autofunction:: interior_trace_pairs
+.. autofunction:: cross_rank_trace_pairs
+"""
+
 __copyright__ = """
 Copyright (C) 2021 University of Illinois Board of Trustees
 """
@@ -45,29 +67,6 @@ import numpy as np
 import grudge.dof_desc as dof_desc
 
 
-__doc__ = """
-Trace Pairs
-^^^^^^^^^^^
-
-Container class
----------------
-
-.. autoclass:: TracePair
-
-Boundary trace functions
-------------------------
-
-.. autofunction:: bdry_trace_pair
-.. autofunction:: bv_trace_pair
-
-Interior and cross-rank trace functions
----------------------------------------
-
-.. autofunction:: interior_trace_pairs
-.. autofunction:: cross_rank_trace_pairs
-"""
-
-
 # {{{ Trace pair container class
 
 @with_container_arithmetic(