diff --git a/Makefile b/Makefile
index 85b774a7a..73b7d7c0e 100644
--- a/Makefile
+++ b/Makefile
@@ -19,6 +19,9 @@
 # * POTASSIUM_DIR    : Top-level potassium dir (default: $(CONTRIB_DIR)/potassium)
 # * IAPWS95_DIR      : Top-level iapws95 dir (default: $(CONTRIB_DIR)/iapws95)
 
+# * EIGEN3_DIR       : Top-level eigen3 dir (should contain FindEigen3.cmake). This
+#                      is only needed if enabling DagMC.
+
 # To control where OpenMC grabs HDF5 from; you don't need to set any of these unless
 # you don't want to use the HDF5 that comes with PETSc
 
@@ -57,6 +60,12 @@ SOCKEYE_DIR         ?= $(CONTRIB_DIR)/sockeye
 SODIUM_DIR          ?= $(CONTRIB_DIR)/sodium
 POTASSIUM_DIR       ?= $(CONTRIB_DIR)/potassium
 IAPWS95_DIR         ?= $(CONTRIB_DIR)/iapws95
+
+# This is the Eigen3 location on CIVET. If you are using MOOSE's conda environment,
+# you don't need to set these variables, because conda sets them for you. The only
+# scenario where you might need to manually set these is if you're not using the
+# conda environment. You will get a compile error about FindEigen3.cmake if you
+# do indeed need to set these.
 EIGEN3_DIR          ?= $(LIBMESH_DIR)/include
 Eigen3_DIR          ?= $(EIGEN3_DIR)
 
@@ -254,7 +263,6 @@ ifeq ($(ENABLE_OPENMC), yes)
 endif
 
 ifeq ($(ENABLE_DAGMC), yes)
-  ADDITIONAL_CPPFLAGS += $(DAGMC_INCLUDES)
   libmesh_CXXFLAGS    += -DENABLE_DAGMC
 endif
 
diff --git a/doc/content/compiletime.md b/doc/content/compiletime.md
index 04b06d50a..2ef9fa6cd 100644
--- a/doc/content/compiletime.md
+++ b/doc/content/compiletime.md
@@ -2,7 +2,7 @@
 
 This page collects some common issues encountered when compiling Cardinal.
 
-## Switching 3-rd Party Options
+## Switching 3rd Party Options
 
 If you are toggling `ENABLE_NEK`, `ENABLE_OPENMC` and/or `ENABLE_DAGMC`,
 you may need to clear out the `build/` and `install/` directories in-between
diff --git a/tutorials/dagmc/openmc.i b/tutorials/dagmc/openmc.i
index f0f9c10f3..16220f8cf 100644
--- a/tutorials/dagmc/openmc.i
+++ b/tutorials/dagmc/openmc.i
@@ -33,6 +33,7 @@
   type = OpenMCCellAverageProblem
   verbose = true
   tally_type = mesh
+  mesh_template = mesh_in.e
   tally_name = 'heat_source'
   solid_cell_level = 0
   solid_blocks = '2 3'
diff --git a/tutorials/dagmc/tests b/tutorials/dagmc/tests
index 29a93dfaf..9af18e02b 100644
--- a/tutorials/dagmc/tests
+++ b/tutorials/dagmc/tests
@@ -12,7 +12,6 @@
     cli_args = 'Executioner/num_steps=2'
     min_parallel = 2
     prereq = mesh
-    mesh_mode = 'replicated'
     requirement = 'The system shall couple DAGMC OpenMC models to MOOSE.'
     required_objects = 'DagMCPostprocessor'
   []