diff --git a/free-programming-books.md b/free-programming-books.md
index 3377a48ce..c728bae63 100644
--- a/free-programming-books.md
+++ b/free-programming-books.md
@@ -903,6 +903,7 @@ Original Source: [List of freely available programming books](http://web.archive
 * [COBOL Programming Fundamental](http://yusman.staff.gunadarma.ac.id/Downloads/files/33460/COBOL_Programming_Fundamental.pdf) (PDF)
 * [Introduction to the COBOL Language](http://www-03.ibm.com/systems/z/education/skills_coursematerials.html#COBOL)
 * [OpenCOBOL 1.1 - Programmer's Guide](http://opencobol.add1tocobol.com/OpenCOBOL%20Programmers%20Guide.pdf) (PDF)
+* [Introduction to the COBOL Language](http://www-03.ibm.com/systems/z/education/skills_coursematerials.html#COBOL)
 
 
 ### CoffeeScript