diff --git a/Jakefile b/Jakefile
index 9dfd02e257c..5336e6058d1 100644
--- a/Jakefile
+++ b/Jakefile
@@ -313,9 +313,9 @@ function exec(cmd, completeHandler) {
         complete();
     });
     ex.addListener("error", function(e, status) {
-    	process.stderr.write(status);
-    	process.stderr.write(e);
-    	complete();
+        process.stderr.write(status);
+        process.stderr.write(e);
+        complete();
     })
     try{
         ex.run();	
@@ -378,9 +378,9 @@ task("runtests", ["tests", builtLocalDirectory], function() {
 
 desc("Generates code coverage data via instanbul")
 task("generate-code-coverage", ["tests", builtLocalDirectory], function () {
-	var cmd = 'istanbul cover node_modules/mocha/bin/_mocha -- -R min -t ' + testTimeout + ' ' + run;
-	console.log(cmd);
-	exec(cmd);	
+    var cmd = 'istanbul cover node_modules/mocha/bin/_mocha -- -R min -t ' + testTimeout + ' ' + run;
+    console.log(cmd);
+    exec(cmd);	
 }, { async: true });
 
 // Browser tests
@@ -465,7 +465,7 @@ compileFile(webhostJsPath, [webhostPath], [tscFile, webhostPath].concat(libraryT
 
 desc("Builds the tsc web host");
 task("webhost", [webhostJsPath], function() {
-        jake.cpR(path.join(builtLocalDirectory, "lib.d.ts"), "tests/webhost/", {silent: true});
+    jake.cpR(path.join(builtLocalDirectory, "lib.d.ts"), "tests/webhost/", {silent: true});
 });
 
 // Perf compiler
@@ -478,16 +478,17 @@ task("perftsc", [perftscJsPath]);
 // Instrumented compiler
 var loggedIOpath = harnessDirectory + 'loggedIO.ts';
 var loggedIOJsPath = builtLocalDirectory + 'loggedIO.js';
-file(loggedIOJsPath, [builtLocalDirectory], function() {
-	var temp = builtLocalDirectory + 'temp';
+file(loggedIOJsPath, [builtLocalDirectory, loggedIOpath], function() {
+    var temp = builtLocalDirectory + 'temp';
     jake.mkdirP(temp);
     var options = "--outdir " + temp + ' ' + loggedIOpath;
     var cmd = host + " " + LKGDirectory + compilerFilename + " " + options + " ";
     console.log(cmd + "\n");
     var ex = jake.createExec([cmd]);
     ex.addListener("cmdEnd", function() {
-	    fs.renameSync(temp + '/harness/loggedIO.js', loggedIOJsPath);
-		jake.rmRf(temp);
+        fs.renameSync(temp + '/harness/loggedIO.js', loggedIOJsPath);
+        jake.rmRf(temp);
+        complete();
     });
     ex.run();    
 }, {async: true});
@@ -498,12 +499,11 @@ compileFile(instrumenterJsPath, [instrumenterPath], [tscFile, instrumenterPath],
 
 desc("Builds an instrumented tsc.js");
 task('tsc-instrumented', [loggedIOJsPath, instrumenterJsPath, tscFile], function() {
-	var cmd = host + ' ' + instrumenterJsPath + ' record iocapture ' + builtLocalDirectory + compilerFilename;
-	console.log(cmd);
+    var cmd = host + ' ' + instrumenterJsPath + ' record iocapture ' + builtLocalDirectory + compilerFilename;
+    console.log(cmd);
     var ex = jake.createExec([cmd]);
-    ex.addListener("error", function(e) {
-		console.log('error running instrumenter');
-		console.log(e);
+    ex.addListener("cmdEnd", function() {
+        complete();
     });
-	ex.run();
-}, { async: true });
\ No newline at end of file
+    ex.run();
+}, { async: true });