diff --git a/lib/devices/ios/instruments.js b/lib/devices/ios/instruments.js
index 97097547f08..31daa1a0402 100644
--- a/lib/devices/ios/instruments.js
+++ b/lib/devices/ios/instruments.js
@@ -239,15 +239,12 @@ Instruments.prototype.spawnInstruments = function(tmpDir) {
   args = args.concat(["-e", "UIARESULTSPATH", tmpDir]);
   var env = _.clone(process.env);
   var buildPath = path.resolve(__dirname, "../../../build");
-  var iwdPath = path.resolve(buildPath, "iwd");
-  var iwd4Path = path.resolve(buildPath, "iwd4");
+  var isXcode4 = this.xcodeVersion !== null && this.xcodeVersion[0] === '4';
+  var iwdPath = path.resolve(buildPath, isXcode4 ? "iwd4" : "iwd");
   env.CA_DEBUG_TRANSACTIONS = 1;
   if (this.withoutDelay && !this.udid) {
-    var isXcode4 = this.xcodeVersion !== null && this.xcodeVersion[0] === '4';
-    env.DYLD_INSERT_LIBRARIES = path.resolve(isXcode4 ? iwd4Path : iwdPath,
-        "InstrumentsShim.dylib");
-
-    env.LIB_PATH = path.resolve(__dirname, isXcode4 ? iwd4Path : iwdPath);
+    env.DYLD_INSERT_LIBRARIES = path.resolve(iwdPath, "InstrumentsShim.dylib");
+    env.LIB_PATH = iwdPath;
   }
   logger.info("Spawning instruments with command: " + this.instrumentsPath +
               " " + args.join(" "));