diff --git a/adev/src/content/introduction/essentials/dependency-injection.md b/adev/src/content/introduction/essentials/dependency-injection.md
index 60fef13cff3..606fb5efbef 100644
--- a/adev/src/content/introduction/essentials/dependency-injection.md
+++ b/adev/src/content/introduction/essentials/dependency-injection.md
@@ -6,7 +6,7 @@ When you need to share logic between components, Angular leverages the design pa
 
 ## What are services?
 
-Services are reusable pieces of code that can be injected
+Services are reusable pieces of code that can be injected.
 
 Similar to defining a component, services are comprised of the following: