diff --git a/examples/plot_matrixmult.py b/examples/plot_matrixmult.py
index 3562ca84..1a427e41 100644
--- a/examples/plot_matrixmult.py
+++ b/examples/plot_matrixmult.py
@@ -80,7 +80,7 @@
 #    </div>
 #
 # This is obtained by invoking the
-# `:func:pylops_mpi.MPIMatrixMult.active_grid_comm` method, which is also
+# :func:`pylops_mpi.basicoperators.MPIMatrixMult.active_grid_comm` method, which is also
 # responsible to identify any rank that should be deactivated (if the number
 # of rows of the operator or columns of the input/output matrices are smaller
 # than the row or columm ranks.