diff --git a/en_US.ISO8859-1/books/porters-handbook/flavors/chapter.xml b/en_US.ISO8859-1/books/porters-handbook/flavors/chapter.xml
index fb2143f50d..16484cfa12 100644
--- a/en_US.ISO8859-1/books/porters-handbook/flavors/chapter.xml
+++ b/en_US.ISO8859-1/books/porters-handbook/flavors/chapter.xml
@@ -77,7 +77,7 @@ lite_PKGNAMESUFFIX=	-lite
 FLAVOR?=	${FLAVORS:[1]}
 nox11_PKGNAMESUFFIX=	-nox11
 [...]
-.if ${FLAVOR} = x11
+.if ${FLAVOR} == x11
 [enable x11 features]
 .endif</programlisting>
     </example>