diff --git a/demos/c4context.html b/demos/c4context.html
index 64ca768e1..d13717c3f 100644
--- a/demos/c4context.html
+++ b/demos/c4context.html
@@ -110,7 +110,7 @@
     title Component diagram for Internet Banking System - API Application
 
     Container(spa, "Single Page Application", "javascript and angular", "Provides all the internet banking functionality to customers via their web browser.")
-    Container(ma, "Mobile App", "Xamarin", "Provides a limited subset ot the internet banking functionality to customers via their mobile mobile device.")
+    Container(ma, "Mobile App", "Xamarin", "Provides a limited subset ot the internet banking functionality to customers via their mobile device.")
     ContainerDb(db, "Database", "Relational Database Schema", "Stores user registration information, hashed authentication credentials, access logs, etc.")
     System_Ext(mbs, "Mainframe Banking System", "Stores all of the core banking information about customers, accounts, transactions, etc.")
 
diff --git a/docs/syntax/c4.md b/docs/syntax/c4.md
index 55f3940d7..c1d2e1597 100644
--- a/docs/syntax/c4.md
+++ b/docs/syntax/c4.md
@@ -399,7 +399,7 @@ UpdateRelStyle(customerA, bankA, $offsetY="60")
     title Component diagram for Internet Banking System - API Application
 
     Container(spa, "Single Page Application", "javascript and angular", "Provides all the internet banking functionality to customers via their web browser.")
-    Container(ma, "Mobile App", "Xamarin", "Provides a limited subset to the internet banking functionality to customers via their mobile mobile device.")
+    Container(ma, "Mobile App", "Xamarin", "Provides a limited subset to the internet banking functionality to customers via their mobile device.")
     ContainerDb(db, "Database", "Relational Database Schema", "Stores user registration information, hashed authentication credentials, access logs, etc.")
     System_Ext(mbs, "Mainframe Banking System", "Stores all of the core banking information about customers, accounts, transactions, etc.")
 
@@ -439,7 +439,7 @@ UpdateRelStyle(customerA, bankA, $offsetY="60")
     title Component diagram for Internet Banking System - API Application
 
     Container(spa, "Single Page Application", "javascript and angular", "Provides all the internet banking functionality to customers via their web browser.")
-    Container(ma, "Mobile App", "Xamarin", "Provides a limited subset to the internet banking functionality to customers via their mobile mobile device.")
+    Container(ma, "Mobile App", "Xamarin", "Provides a limited subset to the internet banking functionality to customers via their mobile device.")
     ContainerDb(db, "Database", "Relational Database Schema", "Stores user registration information, hashed authentication credentials, access logs, etc.")
     System_Ext(mbs, "Mainframe Banking System", "Stores all of the core banking information about customers, accounts, transactions, etc.")
 
diff --git a/packages/mermaid/src/docs/syntax/c4.md b/packages/mermaid/src/docs/syntax/c4.md
index 81120d3c0..c9b7eb6ad 100644
--- a/packages/mermaid/src/docs/syntax/c4.md
+++ b/packages/mermaid/src/docs/syntax/c4.md
@@ -257,7 +257,7 @@ UpdateRelStyle(customerA, bankA, $offsetY="60")
     title Component diagram for Internet Banking System - API Application
 
     Container(spa, "Single Page Application", "javascript and angular", "Provides all the internet banking functionality to customers via their web browser.")
-    Container(ma, "Mobile App", "Xamarin", "Provides a limited subset to the internet banking functionality to customers via their mobile mobile device.")
+    Container(ma, "Mobile App", "Xamarin", "Provides a limited subset to the internet banking functionality to customers via their mobile device.")
     ContainerDb(db, "Database", "Relational Database Schema", "Stores user registration information, hashed authentication credentials, access logs, etc.")
     System_Ext(mbs, "Mainframe Banking System", "Stores all of the core banking information about customers, accounts, transactions, etc.")