diff --git a/docs/tutorial.rst b/docs/tutorial.rst
index f92b4da..2d8608d 100644
--- a/docs/tutorial.rst
+++ b/docs/tutorial.rst
@@ -114,7 +114,7 @@ The package comes with functions to visualize meshes. The function :func:`plot_m
    >>> mesh = dft.Grids(mol)
    >>> mesh.level = 0
    >>> mesh.build()
-   >>> plot_mesh_3d(mesh=mesh, weight=True)
+   >>> plot_mesh_3d(mesh, weight=True)
 
 .. figure:: _images/plot_mesh_3d.png
    :align: center
@@ -125,7 +125,7 @@ The grid can be projected to a given plane, and the grid points can be scaled by
 .. code-block:: python
 
    >>> from var_mesh import plot_mesh_2d
-   >>> plot_mesh_2d(mesh=mesh, weight=5, plane='xz')
+   >>> plot_mesh_2d(mesh, weight=5, plane='xz')
 
 .. figure:: _images/plot_mesh_2d.png
    :align: center
@@ -170,7 +170,7 @@ The script for this example can be downloaded :download:`here </../examples/04_p
 Mode option
 ===========
 
-The ``mode`` parameter will change the format of the final grid output. These outputs can be reused in the respective codes. Currently, the mode ``pyscf``, ``erkale``, and ``gamess`` are supported (case-insensitive).
+The ``mode`` parameter will change the format of the final grid output. These outputs can be reused in the respective codes. Currently, the mode ``'pyscf'``, ``'erkale'``, and ``'gamess'`` are supported (case-insensitive).
 
 .. code-block:: python
 
@@ -188,11 +188,11 @@ If the code does not support different grids for different atom types, the preci
     >>> var_mesh(mesh, precise=True, mode='erkale')
     mode=ERKALE:
     
-    WARN: The precise option will have no effect when using gamess mode
+    WARN: The precise parameter has no effect when using 'gamess' mode.
     
     ERKALE grid: DFTGrid 60 -302
 
-Also, only the largest atom grid will be used in an optimization step. Thus, the atom grids will differ from the default ``pyscf`` mode and will be the same for every atom type.
+Also, only the largest atom grid will be used in an optimization step. Thus, the atom grids will differ from the default ``'pyscf'`` mode and will be the same for every atom type.
 
 .. code-block:: python
 
diff --git a/examples/03_helper_functions/03_helper_functions.py b/examples/03_helper_functions/03_helper_functions.py
index 94bb731..ad1bf25 100644
--- a/examples/03_helper_functions/03_helper_functions.py
+++ b/examples/03_helper_functions/03_helper_functions.py
@@ -12,5 +12,5 @@
 mesh.build()
 
 # Plot the mesh with helper functions
-plot_mesh_3d(mesh=mesh, weight=True)
-plot_mesh_2d(mesh=mesh, weight=5, plane='xz')
+plot_mesh_3d(mesh, weight=True)
+plot_mesh_2d(mesh, weight=5, plane='xz')
diff --git a/examples/README.md b/examples/README.md
index 7167d21..f5431e2 100644
--- a/examples/README.md
+++ b/examples/README.md
@@ -4,6 +4,7 @@
 | 02_custom_grids | Custom grids, verbosity level, and grid parameters |
 | 03_helper_functions | Plot grids |
 | 04_precise_option | Show impact of the precise option |
-| 05_mesh_time | Time the mesh generation for different thresholds |
-| 06_calculation_time | Mesh generation time vs SCF calculation time |
-| 07_pyflosic_usage | Usage with PyFLOSIC (needs extra packages) |
+| 05_mode_option | Show the functionality of the mode option |
+| 06_mesh_time | Time the mesh generation for different thresholds |
+| 07_calculation_time | Mesh generation time vs SCF calculation time |
+| 08_pyflosic_usage | Usage with PyFLOSIC (needs extra packages) |
diff --git a/var_mesh/gen_mesh.py b/var_mesh/gen_mesh.py
index 53b45df..9779667 100644
--- a/var_mesh/gen_mesh.py
+++ b/var_mesh/gen_mesh.py
@@ -60,7 +60,7 @@ def var_mesh(mesh, thres=1e-6, precise=True, mode='pyscf'):
         log.error('The mode parameter has to be one of \'%s\'.',
                   '\', \''.join(supported))
     if mode != 'pyscf' and precise:
-        log.warn('The precise parameter has no effect when using %s mode.',
+        log.warn('The precise parameter has no effect when using \'%s\' mode.',
                  mode)
 
     # Create calculator to generate the initial density