diff --git a/ext/opencv/opencv.cpp b/ext/opencv/opencv.cpp
index 72a1f05..2eedc53 100644
--- a/ext/opencv/opencv.cpp
+++ b/ext/opencv/opencv.cpp
@@ -105,5 +105,11 @@ namespace rubyopencv {
     rb_define_singleton_method(rb_module, "add_weighted", RUBY_METHOD_FUNC(Mat::rb_add_weighted), -1); // in ext/opencv/mat.cpp
 
     rb_define_singleton_method(rb_module, "CV_MAKETYPE", RUBY_METHOD_FUNC(rb_maketype), 2);
+
+    int state = 0;
+    VALUE ret = rb_eval_string_protect("OpenCV = Cv", &state);
+    if (NIL_P(ret)) {
+      rb_warn("An exception occured: %d", state);
+    }
   }
 }
diff --git a/lib/opencv.rb b/lib/opencv.rb
index b81761d..efe07a7 100644
--- a/lib/opencv.rb
+++ b/lib/opencv.rb
@@ -2,5 +2,3 @@ require_relative "opencv/version"
 require "opencv.so"
 require_relative "opencv/basic_structs"
 require_relative "opencv/cvmat"
-
-OpenCV = Cv