diff --git a/mo/src/problems/partition/moBinaryPartition.h b/mo/src/problems/partition/moBinaryPartition.h
index 3b3f478e9..df5fed9fa 100644
--- a/mo/src/problems/partition/moBinaryPartition.h
+++ b/mo/src/problems/partition/moBinaryPartition.h
@@ -62,7 +62,7 @@ class moBinaryPartition : public EO<FitT>
          * You are responsible for making it consistent after instantiation.
          *
          * @warning If you do not fill at least the @ref rejected set,
-         *          errors will be raised whe trying to @ref select or @ref reject.
+         *          errors will be raised when trying to @ref select or @ref reject.
          */
         moBinaryPartition()
         { }
@@ -127,7 +127,7 @@ class moBinaryPartition : public EO<FitT>
                 std::ostream_iterator<AtomType>(out, " ")); // Values.
         }
 
-        //! Convenience function to only render the fitess and the selected atoms (and not the rejected ones).
+        //! Convenience function to only render the fitness and the selected atoms (and not the rejected ones).
         std::string str() const
         {
             std::ostringstream msg;
diff --git a/mo/src/problems/partition/moBinaryPartitionSwapNeighborhood.h b/mo/src/problems/partition/moBinaryPartitionSwapNeighborhood.h
index be677d0e2..f91b252da 100644
--- a/mo/src/problems/partition/moBinaryPartitionSwapNeighborhood.h
+++ b/mo/src/problems/partition/moBinaryPartitionSwapNeighborhood.h
@@ -31,7 +31,7 @@ class moBinaryPartitionSwapNeighborhood : public moNeighborhood<moBinaryPartitio
         using AtomType = typename EOT::AtomType;
 
         /** Get the currently pointed selected atom. */
-        AtomType selected(EOT& from, const size_t i_select) {
+        AtomType selected(EOT& from, const size_t i_select) const {
             typename EOT::ContainerType::iterator
                 it = std::begin(from.rejected);
             std::advance(it, i_select);
@@ -39,7 +39,7 @@ class moBinaryPartitionSwapNeighborhood : public moNeighborhood<moBinaryPartitio
         }
 
         /** Get the currently pointed rejected atom. */
-        AtomType rejected(EOT& from, const size_t j_reject) {
+        AtomType rejected(EOT& from, const size_t j_reject) const {
             typename EOT::ContainerType::iterator
                 it = std::begin(from.selected);
             std::advance(it, j_reject);