diff --git a/build.properties b/build.properties
index aa28151..6963d12 100644
--- a/build.properties
+++ b/build.properties
@@ -25,4 +25,5 @@ version=1.0ea
 arch64=-arch x86_64
 arch32=-arch i386
 archppc=-arch ppc
+archarm64=-arch arm64
 cc=gcc
diff --git a/build.xml b/build.xml
index 692a115..41c3d4e 100644
--- a/build.xml
+++ b/build.xml
@@ -77,6 +77,7 @@ questions.
 
         <exec executable="${cc}" failonerror="true">
             <arg line="${arch64}"/>
+            <arg line="${archarm64}"/>
             <arg value="-I"/>
             <arg value="${javahome}/include"/>
             <arg value="-I"/>