diff --git a/distro-source/mac/build.xml b/distro-source/mac/build.xml
index 624cd95..0e93298 100755
--- a/distro-source/mac/build.xml
+++ b/distro-source/mac/build.xml
@@ -29,7 +29,7 @@
 		<mkdir dir="${gwt.build.dist}" />
 		<gwt.tgz.cat destfile="${project_10_4.dist}">
 			<!-- jars -->
-			<tarfileset file="${gwt.build.lib}/gwt-dev-${build.host.platform}.jar" prefix="${project.distname_10.4}" />
+			<tarfileset file="${gwt.build.lib}/gwt-dev-${dist.platform}.jar" prefix="${project.distname_10.4}" />
 			<tarfileset file="${gwt.build.lib}/gwt-user.jar" prefix="${project.distname_10.4}" />
 			<tarfileset file="${gwt.build.lib}/gwt-servlet.jar" prefix="${project.distname_10.4}" />
                         <tarfileset file="${gwt.build.lib}/gwt-benchmark-viewer.jar" prefix="${project.distname_10.4}" />
@@ -110,7 +110,7 @@
 		<mkdir dir="${gwt.build.dist}" />
 		<gwt.tgz.cat destfile="${project_10_5.dist}">
 			<!-- jars -->
-			<tarfileset file="${gwt.build.lib}/gwt-dev-${build.host.platform}.jar" prefix="${project.distname_10.5}" />
+			<tarfileset file="${gwt.build.lib}/gwt-dev-${dist.platform}.jar" prefix="${project.distname_10.5}" />
 			<tarfileset file="${gwt.build.lib}/gwt-user.jar" prefix="${project.distname_10.5}" />
 			<tarfileset file="${gwt.build.lib}/gwt-servlet.jar" prefix="${project.distname_10.5}" />
                         <tarfileset file="${gwt.build.lib}/gwt-benchmark-viewer.jar" prefix="${project.distname_10.5}" />