diff --git a/book/installation.rst b/book/installation.rst
index cb56e071212..f1a1b540daa 100644
--- a/book/installation.rst
+++ b/book/installation.rst
@@ -233,7 +233,7 @@ If there are any issues, correct them now before moving on.
         $ rm -rf app/cache/*
         $ rm -rf app/logs/*
 
-        $ APACHEUSER=`ps aux | grep -E '[a]pache|[h]ttpd|[_]www|[w]ww-data' | grep -v root | head -1 | cut -d\  -f1`
+        $ APACHEUSER=`ps aux | grep -E '[a]pache|[h]ttpd|[_]www|[w]ww-data|[n]ginx' | grep -v root | head -1 | cut -d\  -f1`
         $ sudo chmod +a "$APACHEUSER allow delete,write,append,file_inherit,directory_inherit" app/cache app/logs
         $ sudo chmod +a "`whoami` allow delete,write,append,file_inherit,directory_inherit" app/cache app/logs
 
@@ -248,7 +248,7 @@ If there are any issues, correct them now before moving on.
 
     .. code-block:: bash
 
-		$ APACHEUSER=`ps aux | grep -E '[a]pache|[h]ttpd|[_]www|[w]ww-data' | grep -v root | head -1 | cut -d\  -f1`
+		$ APACHEUSER=`ps aux | grep -E '[a]pache|[h]ttpd|[_]www|[w]ww-data|[n]ginx' | grep -v root | head -1 | cut -d\  -f1`
 		$ sudo setfacl -Rn -m u:"$APACHEUSER":rwX -m u:`whoami`:rwX app/cache app/logs
 		$ sudo setfacl -dRn -m u:"$APACHEUSER":rwX -m u:`whoami`:rwX app/cache app/logs