diff --git a/defaults/install/build.xml b/defaults/install/build.xml
index 026f1340..40e8f066 100644
--- a/defaults/install/build.xml
+++ b/defaults/install/build.xml
@@ -153,7 +153,7 @@
 
     <!-- Target: artifact -->
     <target name="artifact" description="Build and deploy the application.">
-        <phing phingfile="build.xml" target="artifact-main" inheritAll="false">
+        <phing phingfile="build.xml" target="artifact-main" inheritAll="false" haltonfailure="true">
             <property name="build.env" value="@host@" />
         </phing>
     </target>
diff --git a/targets/artifact.xml b/targets/artifact.xml
index 7a590b35..91539f97 100644
--- a/targets/artifact.xml
+++ b/targets/artifact.xml
@@ -252,7 +252,7 @@
             - Override the "artifact mode" so that files managed with the
               <includeresource /> task are copied into the artifact instead of symlinked.
             -->
-        <phing target="build" phingfile="${phing.file}" inheritAll="false" dir=".">
+        <phing target="build" phingfile="${phing.file}" inheritAll="false" dir="." haltonfailure="true">
             <property name="build.site" value="${site_key}" />
             <property name="drupal.root" value="${artifact.directory}/${drupal.root}" override="true" />
             <property name="includeresource.mode" value="copy" override="true" />