diff --git a/src/test/java/com/google/devtools/build/lib/testutil/TestConstants.java b/src/test/java/com/google/devtools/build/lib/testutil/TestConstants.java
index d9552ad..48e948c 100644
--- a/src/test/java/com/google/devtools/build/lib/testutil/TestConstants.java
+++ b/src/test/java/com/google/devtools/build/lib/testutil/TestConstants.java
@@ -31,13 +31,17 @@
       "process-wrapper",
       "build_interface_so");
 
-
   /**
    * Location in the bazel repo where embedded binaries come from.
    */
   public static final String EMBEDDED_SCRIPTS_PATH = "DOES-NOT-WORK-YET";
 
   /**
+   * Path within runfiles tree for finding everything else.
+   */
+  public static final String RUNFILES_PREFIX = "DOES-NOT-WORK-YET";
+
+  /**
    * Directory where we can find bazel's Java tests, relative to a test's runfiles directory.
    */
   public static final String JAVATESTS_ROOT = "src/test/java/";