diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index d3e417954c..44f3bd96d5 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -582,7 +582,7 @@ Core layer for images cannot be removed
         <glossentry id='var-CFLAGS'><glossterm>CFLAGS</glossterm>
             <glossdef>
                 <para>
-                    Flags passed to C compiler for the target system.
+                    Flags passed to the C compiler for the target system.
                     This variable evaluates to the same as
                     <filename><link linkend='var-TARGET_CFLAGS'>TARGET_CFLAGS</link></filename>.
                 </para>