diff --git a/ej2-javascript/diagram/group.md b/ej2-javascript/diagram/group.md
index 681e638c6..208ee0b1c 100644
--- a/ej2-javascript/diagram/group.md
+++ b/ej2-javascript/diagram/group.md
@@ -122,7 +122,7 @@ The following code illustrates how a group node is added at runtime.
 
 * The collection of group nodes can be dynamically added using 'addElements' method.Each time an element is added to the diagram canvas, the 'collectionChange' event will be triggered.
 
-The following code illustrates how to add a group nodes collection at runtime.
+The following code illustrates how to add group nodes collection at runtime.
 
 {% if page.publishingplatform == "typescript" %}
 
diff --git a/ej2-javascript/diagram/js/connectors.md b/ej2-javascript/diagram/js/connectors.md
index 29e8d26c2..6707e1b81 100644
--- a/ej2-javascript/diagram/js/connectors.md
+++ b/ej2-javascript/diagram/js/connectors.md
@@ -55,7 +55,7 @@ The following code example illustrates how to add connector at runtime.
 
 * The collection of connectors can be dynamically added using 'addElements' method.Each time an element is added to the diagram canvas, the 'collectionChange' event will be triggered.
 
-The following code illustrates how to add a connectors collection at runtime.
+The following code illustrates how to add connectors collection at runtime.
 
 {% tabs %}
 {% highlight ts tabtitle="index.ts" %}
diff --git a/ej2-javascript/diagram/js/nodes.md b/ej2-javascript/diagram/js/nodes.md
index 41a91a42c..5564868c3 100644
--- a/ej2-javascript/diagram/js/nodes.md
+++ b/ej2-javascript/diagram/js/nodes.md
@@ -61,7 +61,7 @@ The following code illustrates how to add a node.
 
 * The collection of nodes can be dynamically added using 'addElements' method.Each time an element is added to the diagram canvas, the 'collectionChange' event will be triggered.
 
-The following code illustrates how to add a nodes collection at runtime.
+The following code illustrates how to add  nodes collection at runtime.
 
 {% tabs %}
 {% highlight ts tabtitle="index.ts" %}
diff --git a/ej2-javascript/diagram/ts/connectors.md b/ej2-javascript/diagram/ts/connectors.md
index 8dcf67ecd..b82d81cc1 100644
--- a/ej2-javascript/diagram/ts/connectors.md
+++ b/ej2-javascript/diagram/ts/connectors.md
@@ -55,7 +55,7 @@ The following code example illustrates how to add connector at runtime.
 
 * The collection of connectors can be dynamically added using 'addElements' method. Each time an element is added to the diagram canvas, the 'collectionChange' event will be triggered.
 
-The following code illustrates how to add a connectors collection at runtime.
+The following code illustrates how to add connectors collection at runtime.
 
 {% tabs %}
 {% highlight ts tabtitle="index.ts" %}
diff --git a/ej2-javascript/diagram/ts/nodes.md b/ej2-javascript/diagram/ts/nodes.md
index 790c3ec3f..103ed8577 100644
--- a/ej2-javascript/diagram/ts/nodes.md
+++ b/ej2-javascript/diagram/ts/nodes.md
@@ -61,7 +61,7 @@ The following code illustrates how to add a node.
 
 * The collection of nodes can be dynamically added using 'addElements' method.Each time an element is added to the diagram canvas, the 'collectionChange' event will be triggered.
 
-The following code illustrates how to add a connectors collection at runtime.
+The following code illustrates how to add nodes collection at runtime.
 
 {% tabs %}
 {% highlight ts tabtitle="index.ts" %}