diff --git a/python/pyphantomjs/phantom.py b/python/pyphantomjs/phantom.py
index 7c8ca003..be4cfff3 100644
--- a/python/pyphantomjs/phantom.py
+++ b/python/pyphantomjs/phantom.py
@@ -65,6 +65,8 @@ class Phantom(QObject):
         self.m_defaultPageSettings['userAgent'] = self.m_page.userAgent()
         self.m_page.applySettings(self.m_defaultPageSettings)
 
+        self.scriptLookupDir = os.path.dirname(os.path.abspath(self.m_scriptFile))
+
         # inject our properties and slots into javascript
         self.m_page.mainFrame().addToJavaScriptWindowObject('phantom', self)
 
@@ -118,7 +120,15 @@ class Phantom(QObject):
 
     @pyqtSlot(str, result=bool)
     def injectJs(self, filePath):
-        return injectJsInFrame(filePath, os.path.dirname(os.path.abspath(self.m_scriptFile)), self.m_page.mainFrame())
+        return injectJsInFrame(filePath, self.scriptLookupDir, self.m_page.mainFrame())
+
+    @pyqtProperty(str)
+    def scriptLookupDir(self):
+        return self.m_page.scriptLookupDir
+
+    @scriptLookupDir.setter
+    def scriptLookupDir(self, dirPath):
+        self.m_page.scriptLookupDir = dirPath
 
     @pyqtProperty('QVariantMap')
     def version(self):
diff --git a/src/phantom.cpp b/src/phantom.cpp
index d526a44a..419a29c9 100644
--- a/src/phantom.cpp
+++ b/src/phantom.cpp
@@ -158,6 +158,8 @@ Phantom::Phantom(QObject *parent)
     m_defaultPageSettings["userAgent"] = QVariant::fromValue(m_page->userAgent());
     m_page->applySettings(m_defaultPageSettings);
 
+    setScriptLookupDir(QFileInfo(m_scriptFile).dir().absolutePath());
+
     m_page->mainFrame()->addToJavaScriptWindowObject("phantom", this);
 
     QFile file(":/bootstrap.js");
@@ -222,10 +224,20 @@ void Phantom::exit(int code)
 }
 
 bool Phantom::injectJs(const QString &jsFilePath) {
-    return Utils::injectJsInFrame(jsFilePath, QFileInfo(m_scriptFile).dir().absolutePath(), m_page->mainFrame());
+    return Utils::injectJsInFrame(jsFilePath, scriptLookupDir(), m_page->mainFrame());
 }
 
 void Phantom::printConsoleMessage(const QString &msg)
 {
     std::cout << qPrintable(msg) << std::endl;
 }
+
+QString Phantom::scriptLookupDir() const
+{
+   return m_page->scriptLookupDir();
+}
+
+void Phantom::setScriptLookupDir(const QString &dirPath)
+{
+   m_page->setScriptLookupDir(dirPath);
+}
diff --git a/src/phantom.h b/src/phantom.h
index 3393a80a..ee93ffbf 100644
--- a/src/phantom.h
+++ b/src/phantom.h
@@ -42,6 +42,7 @@ class Phantom: public QObject
     Q_OBJECT
     Q_PROPERTY(QStringList args READ args)
     Q_PROPERTY(QVariantMap defaultPageSettings READ defaultPageSettings)
+    Q_PROPERTY(QString scriptLookupDir READ scriptLookupDir WRITE setScriptLookupDir)
     Q_PROPERTY(QVariantMap version READ version)
 
 public:
@@ -54,6 +55,9 @@ public:
     bool execute();
     int returnValue() const;
 
+    QString scriptLookupDir() const;
+    void setScriptLookupDir(const QString &dirPath);
+
     QVariantMap version() const;
 
 public slots: