diff --git a/lectures/01_introduction/README.md b/lectures/01_introduction/README.md
index a06b9e0..4d01f32 100644
--- a/lectures/01_introduction/README.md
+++ b/lectures/01_introduction/README.md
@@ -42,7 +42,7 @@ interpreted languages are somewhat blurry.
 - You will practice the cycle of coding & compilation & testing during
 Lab 1.  You are encouraged to try out different development
 environments (code editor & compiler) and quickly settle on one that
-allows you to be most productive.  Ask the your lab TAs & mentors
+allows you to be most productive.  Ask your lab TAs & mentors
 about their favorite programming environments!  The course website
 includes many helpful links as well.