diff --git a/mo/src/continuator/moNeighborBestStat.h b/mo/src/continuator/moNeighborBestStat.h
index 7aa4b2ed6..f7e607985 100644
--- a/mo/src/continuator/moNeighborBestStat.h
+++ b/mo/src/continuator/moNeighborBestStat.h
@@ -150,7 +150,7 @@ private:
     Neighborhood& neighborhood ;
     moEval<Neighbor>& eval;
 
-    // comparator betwenn solution and neighbor or between neighbors
+    // comparator between solution and neighbor or between neighbors
     moNeighborComparator<Neighbor>& neighborComparator;
     moSolNeighborComparator<Neighbor>& solNeighborComparator;
 
diff --git a/mo/src/continuator/moNeighborhoodStat.h b/mo/src/continuator/moNeighborhoodStat.h
index c3fdc278e..6dfe4fde9 100644
--- a/mo/src/continuator/moNeighborhoodStat.h
+++ b/mo/src/continuator/moNeighborhoodStat.h
@@ -239,7 +239,7 @@ protected:
     Neighborhood& neighborhood ;
     moEval<Neighbor>& eval;
 
-    // comparator betwenn solution and neighbor or between neighbors
+    // comparator between solution and neighbor or between neighbors
     moNeighborComparator<Neighbor>& neighborComparator;
     moSolNeighborComparator<Neighbor>& solNeighborComparator;
 
diff --git a/mo/src/explorer/moFirstImprHCexplorer.h b/mo/src/explorer/moFirstImprHCexplorer.h
index 16378e429..8edf9f976 100644
--- a/mo/src/explorer/moFirstImprHCexplorer.h
+++ b/mo/src/explorer/moFirstImprHCexplorer.h
@@ -155,7 +155,7 @@ public:
     };
 
 private:
-    // comparator betwenn solution and neighbor or between neighbors
+    // comparator between solution and neighbor or between neighbors
     moNeighborComparator<Neighbor>& neighborComparator;
     moSolNeighborComparator<Neighbor>& solNeighborComparator;
 
diff --git a/mo/src/explorer/moMetropolisHastingExplorer.h b/mo/src/explorer/moMetropolisHastingExplorer.h
index 3123c4914..1989ff1c3 100644
--- a/mo/src/explorer/moMetropolisHastingExplorer.h
+++ b/mo/src/explorer/moMetropolisHastingExplorer.h
@@ -162,7 +162,7 @@ public:
     };
 
 private:
-    // comparator betwenn solution and neighbor or between neighbors
+    // comparator between solution and neighbor or between neighbors
     moNeighborComparator<Neighbor>& neighborComparator;
     moSolNeighborComparator<Neighbor>& solNeighborComparator;
 
diff --git a/mo/src/explorer/moRandomBestHCexplorer.h b/mo/src/explorer/moRandomBestHCexplorer.h
index d5e12f087..e96f6673b 100644
--- a/mo/src/explorer/moRandomBestHCexplorer.h
+++ b/mo/src/explorer/moRandomBestHCexplorer.h
@@ -189,7 +189,7 @@ public:
     };
 
 protected:
-    // comparator betwenn solution and neighbor or between neighbors
+    // comparator between solution and neighbor or between neighbors
     moNeighborComparator<Neighbor>& neighborComparator;
     moSolNeighborComparator<Neighbor>& solNeighborComparator;
 
diff --git a/mo/src/explorer/moRandomNeutralWalkExplorer.h b/mo/src/explorer/moRandomNeutralWalkExplorer.h
index 3a5eddc3e..95995c753 100644
--- a/mo/src/explorer/moRandomNeutralWalkExplorer.h
+++ b/mo/src/explorer/moRandomNeutralWalkExplorer.h
@@ -158,7 +158,7 @@ public:
     };
 
 private:
-    // comparator betwenn solution and neighbor or between neighbors
+    // comparator between solution and neighbor or between neighbors
     moSolNeighborComparator<Neighbor>& solNeighborComparator;
 
     // current number of step
diff --git a/mo/src/explorer/moSAexplorer.h b/mo/src/explorer/moSAexplorer.h
index 3d9f477ee..08d859035 100644
--- a/mo/src/explorer/moSAexplorer.h
+++ b/mo/src/explorer/moSAexplorer.h
@@ -166,7 +166,7 @@ public:
     }
 
 private:
-    // comparator betwenn solution and neighbor
+    // comparator between solution and neighbor
     moSolNeighborComparator<Neighbor>& solNeighborComparator;
 
     moCoolingSchedule<EOT>& coolingSchedule;
diff --git a/mo/src/explorer/moSimpleHCexplorer.h b/mo/src/explorer/moSimpleHCexplorer.h
index 573881d2f..b4f235ae8 100644
--- a/mo/src/explorer/moSimpleHCexplorer.h
+++ b/mo/src/explorer/moSimpleHCexplorer.h
@@ -155,7 +155,7 @@ public:
     }
 
 private:
-    // comparator betwenn solution and neighbor or between neighbors
+    // comparator between solution and neighbor or between neighbors
     moNeighborComparator<Neighbor>& neighborComparator;
     moSolNeighborComparator<Neighbor>& solNeighborComparator;