diff --git a/Documentation/Cookbook/rst/QGISInterface.rst b/Documentation/Cookbook/rst/QGISInterface.rst
index 06b8b2fdddc512181d1396505cdadc170025131a..a1f838a965f3fef5b20e1b89f625b503cc6808d1 100644
--- a/Documentation/Cookbook/rst/QGISInterface.rst
+++ b/Documentation/Cookbook/rst/QGISInterface.rst
@@ -44,7 +44,7 @@ Documentation of OTB settings available in QGIS Processing
 Possible values for logger level are INFO, WARNING, CRITICAL, DEBUG. You can refer to otb::Logger documentation for more on this values. This value is INFO by default. This is an advanced user configuration.
 
 * **Maximum RAM to use** (optional): by default OTB applications use system RAM as available. You can however instruct OTB to use a specific amount of RAM from available using this option.
-A value of 128 is ignored by OTB processing provider. This is an advanced user configuration.
+A value of 256 is ignored by OTB processing provider. This is an advanced user configuration.
 
 * **Geoid file** (optional): Path to geoid file. Value of this options is set for elev.dem.geoid and elev.geoid parameters in OTB applications.
 Setting this value globally help users to share it across multiple processing algorithms. This value is empty by default.