diff --git a/doc/release.md b/doc/release.md
index a4f3e50..cf0a48d 100644
--- a/doc/release.md
+++ b/doc/release.md
@@ -38,7 +38,7 @@
 $ ./make-release-war.sh
 ```
 
-### Deploy assemnbly jar file
+### Deploy assembly jar file
 
 For plug-in development, we have to publish the assembly jar file to the public Maven repository by `release/deploy-assembly-jar.sh`.