diff --git a/source/ch01-gearup/sec03-careers.ptx b/source/ch01-gearup/sec03-careers.ptx
index bf1c4c8..fac95c0 100644
--- a/source/ch01-gearup/sec03-careers.ptx
+++ b/source/ch01-gearup/sec03-careers.ptx
@@ -26,7 +26,7 @@
         </li>
         <li>
           <p>
-            There is no discipine without vision.
+            There is no discipline without vision.
           </p>
         </li>
       </ol>
@@ -127,4 +127,4 @@
       
     </subsection>
 
-</section>
\ No newline at end of file
+</section>