diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b512c09
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+node_modules
\ No newline at end of file
diff --git a/bindings.js b/bindings.js
index 226b37f..3ad138d 100644
--- a/bindings.js
+++ b/bindings.js
@@ -81,6 +81,11 @@ function bindings(opts) {
   if (!opts.module_root) {
     opts.module_root = exports.getRoot(exports.getFileName());
   }
+  
+  // Add the user defined tries
+  if (opts.userDefinedTries) {
+    opts.try = opts.try.concat(opts.userDefinedTries);
+  }
 
   // Ensure the given bindings name ends with .node
   if (path.extname(opts.bindings) != '.node') {
@@ -155,7 +160,7 @@ exports.getFileName = function getFileName(calling_file) {
   Error.prepareStackTrace = function(e, st) {
     for (var i = 0, l = st.length; i < l; i++) {
       fileName = st[i].getFileName();
-      if (fileName !== __filename) {
+      if (fileName !== undefined && fileName !== __filename) {
         if (calling_file) {
           if (fileName !== calling_file) {
             return;
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..09b4c12
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,13 @@
+{
+  "name": "bindings",
+  "version": "1.5.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "file-uri-to-path": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz",
+      "integrity": "sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw=="
+    }
+  }
+}