diff --git a/docs/source/usersguide/volume.rst b/docs/source/usersguide/volume.rst
index b946858ea4..c040eb2d7f 100644
--- a/docs/source/usersguide/volume.rst
+++ b/docs/source/usersguide/volume.rst
@@ -38,7 +38,7 @@ Of course, the volumes that you *need* this capability for are often the ones
 with complex definitions.
 
 A threshold can be applied for the calculation's variance, standard deviation,
-or relative error of volume estimates using ::attr::`openmc.VolumeCalculation.set_trigger`::
+or relative error of volume estimates using :meth:`openmc.VolumeCalculation.set_trigger`::
 
     vol_calc.set_trigger(1e-05, 'std_dev')
 
@@ -76,4 +76,4 @@ After the results are loaded, volume estimates will be stored in
 :attr:`VolumeCalculation.volumes`. There is also a
 :attr:`VolumeCalculation.atoms_dataframe` attribute that shows stochastic
 estimates of the number of atoms of each type of nuclide within the specified
-domains along with their uncertainties.
\ No newline at end of file
+domains along with their uncertainties.