diff --git a/build.xml b/build.xml
index 76abf5e12..e5df521f0 100644
--- a/build.xml
+++ b/build.xml
@@ -493,7 +493,7 @@ BUILD QUICK-TEST LAYER
       srcdir="${src.dir}/library"
       destdir="${quick.dir}/lib/library"
       usepredefs="no"
-      addparams="${nsc.params}"
+      addparams="${nsc.params}" target="jvm-1.4"
       deprecation="yes" unchecked="yes"
       scalacdebugging="${nsc.log-files}"
       classpath="${quick.dir}/lib/library"
@@ -501,7 +501,7 @@ BUILD QUICK-TEST LAYER
     <locker
       srcdir="${src.dir}/library"
       destdir="${quick.dir}/lib/library"
-      addparams="${nsc.params}"
+      addparams="${nsc.params}" target="jvm-1.4"
       deprecation="yes" unchecked="yes"
       scalacdebugging="${nsc.log-files}"
       classpath="${quick.dir}/lib/library">
@@ -526,7 +526,7 @@ BUILD QUICK-TEST LAYER
     <locker
       srcdir="${src.dir}/dbc"
       destdir="${quick.dir}/lib/dbc"
-      addparams="${nsc.params}"
+      addparams="${nsc.params}" target="jvm-1.4"
       deprecation="yes" unchecked="yes"
       scalacdebugging="${nsc.log-files}">
       <classpath>
@@ -547,7 +547,7 @@ BUILD QUICK-TEST LAYER
     <locker
       srcdir="${src.dir}/actors"
       destdir="${quick.dir}/lib/actors"
-      addparams="${nsc.params}"
+      addparams="${nsc.params}" target="jvm-1.4"
       deprecation="yes" unchecked="yes"
       scalacdebugging="${nsc.log-files}">
       <classpath>
@@ -562,7 +562,7 @@ BUILD QUICK-TEST LAYER
     <locker
       srcdir="${src.dir}/compiler"
       destdir="${quick.dir}/lib/compiler"
-      addparams="${nsc.params}"
+      addparams="${nsc.params}" target="jvm-1.4"
       deprecation="yes" unchecked="yes"
       scalacdebugging="${nsc.log-files}">
       <classpath>
@@ -591,7 +591,7 @@ BUILD QUICK-TEST LAYER
     <locker
       srcdir="${src.dir}/partest"
       destdir="${quick.dir}/lib/partest"
-      addparams="${nsc.params}"
+      addparams="${nsc.params}" target="jvm-1.4"
       deprecation="yes" unchecked="yes">
       <classpath>
         <pathelement location="${quick.dir}/lib/library"/>