diff --git a/docs/source/introduction_guide.rst b/docs/source/introduction_guide.rst
index d78f5381..b048c071 100644
--- a/docs/source/introduction_guide.rst
+++ b/docs/source/introduction_guide.rst
@@ -33,7 +33,7 @@ Lightning Philosophy
 Lightning factors DL/ML code into three types:
 
 - Research code
-- Engineerng code
+- Engineering code
 - Non-essential code
 
 Research code