diff --git a/src/OpenCV.cc b/src/OpenCV.cc
index 6ebdf01..4ccd4d2 100755
--- a/src/OpenCV.cc
+++ b/src/OpenCV.cc
@@ -27,6 +27,11 @@ NAN_METHOD(OpenCV::ReadImage) {
 
     REQ_FUN_ARG(1, cb);
 
+    Local<Value> argv[2];
+
+    argv[0] = NanNull();
+    argv[1] = im_h;
+
     if (args[0]->IsNumber() && args[1]->IsNumber()){
       int width, height;
 
@@ -47,17 +52,12 @@ NAN_METHOD(OpenCV::ReadImage) {
       mat = cv::imdecode(*mbuf, -1);
 
       if (mat.empty()){
-        NanThrowTypeError("Error loading file");
+        argv[0] = NanError("Error loading file");
       }
     }
 
     img->mat = mat;
 
-    Local<Value> argv[2];
-
-    argv[0] = NanNull();
-    argv[1] = im_h;
-
     TryCatch try_catch;
 
     cb->Call(NanGetCurrentContext()->Global(), 2, argv);