diff --git a/module3/lessons/building_an_api.md b/module3/lessons/building_an_api.md
index 2a96e64f7..535bd552f 100644
--- a/module3/lessons/building_an_api.md
+++ b/module3/lessons/building_an_api.md
@@ -41,7 +41,7 @@ In the end, though, as developers we have a choice to make around our developmen
 
 #### RESTful Wrap-Up
 
-REST is language-agnostics, and is a standard we should continue to build, but we ARE allowed some flexibility.
+REST is language-agnostic, and is a standard we should continue to build, but we ARE allowed some flexibility.
 
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