diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index 2c01d78e77..4d821760b4 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -1993,10 +1993,10 @@ Core layer for images cannot be removed
         <glossentry id='var-IMAGE_FSTYPES'><glossterm>IMAGE_FSTYPES</glossterm>
             <glossdef>
                 <para>
-                    Specifies the formats of the root filesystem created by
-                    the OpenEmbedded build system.
-                    Available formats are a subset of the
-                    supported images listed in
+                    Specifies the formats the OpenEmbedded build system uses
+                    during the build when creating the root filesystem.
+                    For the complete list of supported image formats from which
+                    you can choose, see
                     <link linkend='var-IMAGE_TYPES'><filename>IMAGE_TYPES</filename></link>.
                 </para>
             </glossdef>