diff --git a/doc/Jamfile.v2 b/doc/Jamfile.v2
index 2fc6463..91af84f 100644
--- a/doc/Jamfile.v2
+++ b/doc/Jamfile.v2
@@ -29,20 +29,20 @@ install images
     :
         <location>html/images
     ;
-        
+
 boostbook standalone
     :
         optional
     :
-        <format>html:<xsl:param>boost.root=../../../..
-        <format>html:<xsl:param>boost.libraries=../../../../libs/libraries.htm
-        <xsl:param>chapter.autolabel=0
-        <xsl:param>chunk.section.depth=8
-        <xsl:param>toc.section.depth=2
-        <xsl:param>toc.max.depth=2
-        <xsl:param>generate.section.toc.level=1
-        <format>pdf:<xsl:param>img.src.path=$(images)/
-        <format>pdf:<xsl:param>boost.url.prefix=http://www.boost.org/doc/libs/release/libs/optional/doc/html
+        <format>html:<xsl:param>"boost.root=../../../.."
+        <format>html:<xsl:param>"boost.libraries=../../../../libs/libraries.htm"
+        <xsl:param>"chapter.autolabel=0"
+        <xsl:param>"chunk.section.depth=8"
+        <xsl:param>"toc.section.depth=2"
+        <xsl:param>"toc.max.depth=2"
+        <xsl:param>"generate.section.toc.level=1"
+        <format>pdf:<xsl:param>"img.src.path=$(images)/"
+        <format>pdf:<xsl:param>"boost.url.prefix=http://www.boost.org/doc/libs/release/libs/optional/doc/html"
         <format>docbook:<auto-index-internal>on
     ;