diff --git a/MeshLib/Elements/QuadRule4.h b/MeshLib/Elements/QuadRule4.h
index c4ed6263fe22c671545f14184a6d7e5c1ff4df9c..416c93ce5841ee265d0aa39e82f2285bae2c07b0 100644
--- a/MeshLib/Elements/QuadRule4.h
+++ b/MeshLib/Elements/QuadRule4.h
@@ -20,7 +20,7 @@ namespace MeshLib
 {
 
 /**
- * This class represents a 2d quadliteral element. The following sketch shows the node and edge numbering.
+ * This class represents a 2d quadrilateral element. The following sketch shows the node and edge numbering.
  * @anchor QuadNodeAndEdgeNumbering
  * @code
  *              2
diff --git a/MeshLib/Elements/QuadRule8.h b/MeshLib/Elements/QuadRule8.h
index 3cb5770765551fd51531f06d6b24fa2c16e48e5e..2fd8a193f04be35d25a1bc34e21b9912465cc766 100644
--- a/MeshLib/Elements/QuadRule8.h
+++ b/MeshLib/Elements/QuadRule8.h
@@ -19,7 +19,7 @@ namespace MeshLib
 {
 
 /**
- * This class represents a 2d quadliteral element with 8 nodes.
+ * This class represents a 2d quadrilateral element with 8 nodes.
  * The following sketch shows the node and edge numbering.
  * @anchor QuadNodeAndEdgeNumbering
  * @code
diff --git a/MeshLib/Elements/QuadRule9.h b/MeshLib/Elements/QuadRule9.h
index 768096e8c5849fa6f9f93052fd5df3937e8199b2..10b7a452959fa91e508441dd82561b96d32642ae 100644
--- a/MeshLib/Elements/QuadRule9.h
+++ b/MeshLib/Elements/QuadRule9.h
@@ -18,7 +18,7 @@ namespace MeshLib
 {
 
 /**
- * This class represents a 2d quadliteral element with 9 nodes.
+ * This class represents a 2d quadrilateral element with 9 nodes.
  * The following sketch shows the node and edge numbering.
  * @anchor QuadNodeAndEdgeNumbering
  * @code
@@ -26,7 +26,7 @@ namespace MeshLib
  *        3-----6-----2
  *        |           |
  *        |           |
- *      3 7     9     5 1
+ *      3 7     8     5 1
  *        |           |
  *        |           |
  *        0-----4-----1