require org.eclipse.core.runtime
diff --git a/core/tests/org.eclipse.dltk.formatter.tests/META-INF/MANIFEST.MF b/core/tests/org.eclipse.dltk.formatter.tests/META-INF/MANIFEST.MF
index a8aac04..bc552a2 100644
--- a/core/tests/org.eclipse.dltk.formatter.tests/META-INF/MANIFEST.MF
+++ b/core/tests/org.eclipse.dltk.formatter.tests/META-INF/MANIFEST.MF
@@ -7,6 +7,7 @@
 Bundle-Localization: plugin
 Bundle-RequiredExecutionEnvironment: J2SE-1.4
 Require-Bundle: org.junit,
+ org.eclipse.core.runtime,
  org.eclipse.jface.text,
  org.eclipse.dltk.core,
  org.eclipse.dltk.ui,