diff --git a/eclipse.spec b/eclipse.spec
index 8627622..192ac23 100644
--- a/eclipse.spec
+++ b/eclipse.spec
@@ -912,7 +912,8 @@ homedir=$(cd home && pwd)
 echo "<project default=\"main\"><target name=\"main\"></target></project>" > build/assemble.org.eclipse.equinox.initializer.all.xml
 echo "<project default=\"main\"><target name=\"main\"></target></project>" > build/package.org.eclipse.equinox.initializer.all.xml
 
-$SDK/eclipse \
+java -cp $SDK/startup.jar \
+      org.eclipse.core.launcher.Main \
      -Duser.home=$homedir                              \
      -application org.eclipse.ant.core.antRunner       \
      -Dtype=plugin                                    \
@@ -923,7 +924,8 @@ $SDK/eclipse \
      -f $SDK/plugins/org.eclipse.pde.build_$PDEPLUGINVERSION/scripts/build.xml
 
 pushd build/plugins/org.eclipse.equinox.initializer
-$SDK/eclipse \
+java -cp $SDK/startup.jar \
+      org.eclipse.core.launcher.Main \
      -Duser.home=$homedir                              \
      -application org.eclipse.ant.core.antRunner       \
      -f build.xml build.update.jar