diff --git a/ext/opencv/cverror.cpp b/ext/opencv/cverror.cpp
index 6b9ba6e..a2e3ff7 100644
--- a/ext/opencv/cverror.cpp
+++ b/ext/opencv/cverror.cpp
@@ -152,7 +152,7 @@ by_code(int error_code)
 }
 
 void
-raise_cverror(cv::Exception e)
+raise(cv::Exception e)
 {
   rb_raise(by_code(e.code), e.what());
 }
diff --git a/ext/opencv/cverror.h b/ext/opencv/cverror.h
index 0c0d35b..789191d 100644
--- a/ext/opencv/cverror.h
+++ b/ext/opencv/cverror.h
@@ -20,7 +20,7 @@ __NAMESPACE_BEGIN_CVERROR
 
 void define_ruby_class();
 VALUE by_code(int error_code);
-void raise_cverror(cv::Exception e);
+void raise(cv::Exception e);
 
 __NAMESPACE_END_CVERROR
 __NAMESPACE_END_OPENCV
diff --git a/ext/opencv/cvutils.cpp b/ext/opencv/cvutils.cpp
index b6ff746..9d075d0 100644
--- a/ext/opencv/cvutils.cpp
+++ b/ext/opencv/cvutils.cpp
@@ -10,13 +10,15 @@
 #include "cvutils.h"
 
 void
-raise_typeerror(VALUE object, VALUE expected_class) {
+raise_typeerror(VALUE object, VALUE expected_class)
+{
   rb_raise(rb_eTypeError, "wrong argument type %s (expected %s)",
   	   rb_obj_classname(object), rb_class2name(expected_class));
 }
 
 void
-raise_compatible_typeerror(VALUE object, VALUE expected_class) {
+raise_compatible_typeerror(VALUE object, VALUE expected_class)
+{
   rb_raise(rb_eTypeError, "wrong argument type %s (expected %s or compatible object)",
   	   rb_obj_classname(object), rb_class2name(expected_class));
 }
diff --git a/ext/opencv/cvutils.h b/ext/opencv/cvutils.h
index ff87e86..73bae0f 100644
--- a/ext/opencv/cvutils.h
+++ b/ext/opencv/cvutils.h
@@ -14,6 +14,8 @@
 #include "opencv2/imgproc/imgproc_c.h"
 #include "opencv2/imgproc/imgproc.hpp"
 
+#define raise_cverror(e) cCvError::raise(e)
+
 void raise_typeerror(VALUE object, VALUE expected_class);
 void raise_compatible_typeerror(VALUE object, VALUE expected_class);
 void* rb_cvAlloc(size_t size);