diff --git a/build.xml b/build.xml
index 506fbc679..82aeb612c 100644
--- a/build.xml
+++ b/build.xml
@@ -174,9 +174,11 @@
       <and>
         <uptodate targetfile="${deploy.dir}/${lib.name}lib.swc">
           <srcfiles dir="src/as" includes="**/*.as"/>
+          <srcfiles dir="src/as" includes="**/Environment.as-fp"/>
         </uptodate>
         <uptodate targetfile="${deploy.dir}/${lib.name}lib.abc">
           <srcfiles dir="src/as" includes="**/*.as"/>
+          <srcfiles dir="src/as" includes="**/Environment.as-tm"/>
         </uptodate>
       </and>
     </or></condition>
@@ -203,6 +205,7 @@
       <arg value="${deploy.dir}/${lib.name}lib.swc"/>
     </java>
     <delete file="${deploy.dir}/aslib-config.xml"/>
+    <delete file="src/as/com/threerings/util/env/Environment.as"/>
 
     <copy file="src/as/com/threerings/util/env/Environment.as-tm"
           tofile="src/as/com/threerings/util/env/Environment.as"/>
diff --git a/src/as/com/threerings/util/env/Environment.as-tm b/src/as/com/threerings/util/env/Environment.as-tm
index e0bf5236b..2dcef14b7 100644
--- a/src/as/com/threerings/util/env/Environment.as-tm
+++ b/src/as/com/threerings/util/env/Environment.as-tm
@@ -38,6 +38,7 @@ public class Environment
         if (obj != null) {
             return Domain.currentDomain.getVariables(obj);
         }
+        return new Array();
     }
 
     /**