diff --git a/book/forms.rst b/book/forms.rst
index 29d48045f73..2e2830593e3 100644
--- a/book/forms.rst
+++ b/book/forms.rst
@@ -1170,7 +1170,7 @@ Defining your Forms as Services
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Your form type might have some external dependencies. You can define your form
-type as a service, and inject inject all dependencies you need.
+type as a service, and inject all dependencies you need.
 
 .. note::