diff --git a/build.xml b/build.xml
index 2475644..efb63c5 100644
--- a/build.xml
+++ b/build.xml
@@ -41,7 +41,7 @@
             <arg value="${basedir}/test:/host"/>
             <arg value="sebastianbergmann/amitools:latest"/>
             <arg value="vamos"/>
-            <arg value="-C"/>
+            <arg value="--cpu"/>
             <arg value="68020"/>
             <arg value="/host/hello"/>
         </exec>