diff --git a/doc/library_add_new_module.md b/doc/library_add_new_module.md
index ae023360100aaf5121e149123f82080e99682666..b255dfbae6b433765e77bc0e88c32aea039f45a6 100644
--- a/doc/library_add_new_module.md
+++ b/doc/library_add_new_module.md
@@ -1,7 +1,7 @@
 OpenPose Library - Steps to Add a New Module
 ====================================
 
-## Developping Steps
+## Developing Steps
 In order to add a new module, these are the recommended steps in order to develop it:
 
 1. Create a folder with its name in the `experimental/` module, e.g., `experimental/hair/`.