diff --git a/README.md b/README.md
index e4cbd9268e..7db3f58f33 100644
--- a/README.md
+++ b/README.md
@@ -21,12 +21,13 @@ For further developer and user documentation please visit [the wiki](https://git
 are listed on the [ownCloud apps overview](https://github.com/owncloud/core/wiki/Apps)
 
 ## Dependencies
+* At least a 64bit operating system, otherwise sync will not work
+* PHP >= 5.6
 * ownCloud >= 9.0
 * libxml >= 2.7.8 (2.9 recommended)
 * php-curl
 * iconv
 * SimpleXML
-* PHP >= 5.6
 
 ## Build Dependencies
 These Dependencies are only relevant if you want to build the source code: