diff --git a/src/Cxx/Graphs/DirectedGraphToMutableDirectedGraph.cxx b/src/Cxx/Graphs/DirectedGraphToMutableDirectedGraph.cxx
index 41787b604ca617c18b30746996c6d298b2105d5d..14665af39f79492bd9cfe94b56600df42db5dabb 100644
--- a/src/Cxx/Graphs/DirectedGraphToMutableDirectedGraph.cxx
+++ b/src/Cxx/Graphs/DirectedGraphToMutableDirectedGraph.cxx
@@ -6,7 +6,7 @@
 int main(int, char*[])
 {
   // vtkDirectedGraph is a collection of vertices along with a collection of
-  // directed edges n(edges that have a source and target). ShallowCopy() and
+  // directed edges (edges that have a source and target). ShallowCopy() and
   // DeepCopy() (and CheckedShallowCopy(), CheckedDeepCopy()) accept instances
   // of vtkTree and vtkMutableDirectedGraph. vtkDirectedGraph is read-only.
 
diff --git a/src/Cxx/Graphs/MutableDirectedGraphToDirectedGraph.cxx b/src/Cxx/Graphs/MutableDirectedGraphToDirectedGraph.cxx
index b54218af50b51746b31a1491d87a22c008a2600e..e1d6a1e4d4696a8070ef872dfde02dcd97d1225f 100644
--- a/src/Cxx/Graphs/MutableDirectedGraphToDirectedGraph.cxx
+++ b/src/Cxx/Graphs/MutableDirectedGraphToDirectedGraph.cxx
@@ -6,7 +6,7 @@
 int main(int, char*[])
 {
   // vtkDirectedGraph is a collection of vertices along with a collection of
-  // directed edges n(edges that have a source and target). ShallowCopy() and
+  // directed edges (edges that have a source and target). ShallowCopy() and
   // DeepCopy() (and CheckedShallowCopy(), CheckedDeepCopy()) accept instances
   // of vtkTree and vtkMutableDirectedGraph. vtkDirectedGraph is read-only.
 
diff --git a/src/PythonicAPI/Graphs/DirectedGraphToMutableDirectedGraph.py b/src/PythonicAPI/Graphs/DirectedGraphToMutableDirectedGraph.py
index e850621231a95fbaa4df2321d9426606e19738e1..80488c38d2d9133b8369f452f2e1485a974ea525 100644
--- a/src/PythonicAPI/Graphs/DirectedGraphToMutableDirectedGraph.py
+++ b/src/PythonicAPI/Graphs/DirectedGraphToMutableDirectedGraph.py
@@ -13,7 +13,7 @@ from vtkmodules.vtkCommonDataModel import (
 
 def main():
     # vtkDirectedGraph is a collection of vertices along with a collection of
-    # directed edges n(edges that have a source and target). ShallowCopy() and
+    # directed edges (edges that have a source and target). ShallowCopy() and
     # DeepCopy() (and CheckedShallowCopy(), CheckedDeepCopy()) accept instances
     # of vtkTree and vtkMutableDirectedGraph. vtkDirectedGraph is read-only.
 
diff --git a/src/PythonicAPI/Graphs/MutableDirectedGraphToDirectedGraph.py b/src/PythonicAPI/Graphs/MutableDirectedGraphToDirectedGraph.py
index cdce8541f814f1ca63721851f1141709da0d466c..5ea60907e5885828c8689071d1b66c149bb5bcf4 100644
--- a/src/PythonicAPI/Graphs/MutableDirectedGraphToDirectedGraph.py
+++ b/src/PythonicAPI/Graphs/MutableDirectedGraphToDirectedGraph.py
@@ -13,7 +13,7 @@ from vtkmodules.vtkCommonDataModel import (
 
 def main():
     # vtkDirectedGraph is a collection of vertices along with a collection of
-    # directed edges n(edges that have a source and target). ShallowCopy() and
+    # directed edges (edges that have a source and target). ShallowCopy() and
     # DeepCopy() (and CheckedShallowCopy(), CheckedDeepCopy()) accept instances
     # of vtkTree and vtkMutableDirectedGraph. vtkDirectedGraph is read-only.