diff --git a/Jakefile.js b/Jakefile.js
index 3ccca83333314..c789c855a9f5c 100644
--- a/Jakefile.js
+++ b/Jakefile.js
@@ -645,7 +645,7 @@ var run = path.join(builtLocalDirectory, "run.js");
 compileFile(
     /*outFile*/ run,
     /*source*/ harnessSources,
-    /*prereqs*/ [builtLocalDirectory, tscFile].concat(libraryTargets).concat(harnessSources),
+    /*prereqs*/ [builtLocalDirectory, tscFile].concat(libraryTargets).concat(servicesSources).concat(harnessSources),
     /*prefixes*/ [],
     /*useBuiltCompiler:*/ true,
     /*opts*/ { inlineSourceMap: true, types: ["node", "mocha", "chai"] });