diff --git a/admin_manual/installation/source_installation.rst b/admin_manual/installation/source_installation.rst
index 1b9e83e02..1de364620 100644
--- a/admin_manual/installation/source_installation.rst
+++ b/admin_manual/installation/source_installation.rst
@@ -350,7 +350,7 @@ When you are using ``php-fpm``, system environment variables like
 PATH, TMP or others are not automatically populated in the same way as 
 when using ``php-cli``. A PHP call like ``getenv('PATH');`` can therefore 
 return an empty result. So you may need to manually configure environment 
-varibles in the appropropriate ``php-fpm`` ini/config file. 
+variables in the appropropriate ``php-fpm`` ini/config file. 
 
 Here are some example root paths for these ini/config files: