diff --git a/gocv/gocv_calib3d.go b/gocv/gocv_calib3d.go
index a49ca0e..2ced4e3 100644
--- a/gocv/gocv_calib3d.go
+++ b/gocv/gocv_calib3d.go
@@ -31,7 +31,7 @@ func GcvInitCameraMatrix2D(objPts, imgPts *mat64.Dense) (camMat *mat64.Dense) {
 			imgPts.At(i, 0), imgPts.At(i, 1)))
 	}
 
-	camMat = MatToMat64(GcvInitCameraMatrix2D_(objPtsVec, imgPtsVec))
+	camMat = GcvMatToMat64(GcvInitCameraMatrix2D_(objPtsVec, imgPtsVec))
 	return camMat
 }
 
diff --git a/gocv/gocv_core.cpp b/gocv/gocv_core.cpp
index d5b4256..d448255 100644
--- a/gocv/gocv_core.cpp
+++ b/gocv/gocv_core.cpp
@@ -5,7 +5,7 @@
 
 #include "gocv_core.hpp"
 
-cv::Mat ToMat_(int row, int col, std::vector<double> data) {
+cv::Mat Mat64ToGcvMat_(int row, int col, std::vector<double> data) {
         assert(row * col == data.size());
 
         cv::Mat mat = cv::Mat(row, col, CV_64F);
diff --git a/gocv/gocv_core.go b/gocv/gocv_core.go
index 05ab78c..279c7f2 100644
--- a/gocv/gocv_core.go
+++ b/gocv/gocv_core.go
@@ -33,7 +33,7 @@ func NewGcvSize2f64(x, y float64) GcvSize2f64_ {
 // The reason is the latter is much easier to handle
 // in Go.
 // GcvMat is assumed to be 2-dimensional matrix.
-func MatToMat64(mat Mat) *mat64.Dense {
+func GcvMatToMat64(mat GcvMat) *mat64.Dense {
 	col := mat.GetCols()
 	row := mat.GetRows()
 
@@ -54,7 +54,7 @@ func MatToMat64(mat Mat) *mat64.Dense {
 }
 
 // Convert *mat64.Dense to Mat
-func ToMat(mat *mat64.Dense) Mat {
+func Mat64ToGcvMat(mat *mat64.Dense) GcvMat {
 	row, col := mat.Dims()
 
 	rawData := NewGcvFloat64Vector(int64(row * col))
@@ -65,5 +65,5 @@ func ToMat(mat *mat64.Dense) Mat {
 		}
 	}
 
-	return ToMat_(row, col, rawData)
+	return Mat64ToGcvMat_(row, col, rawData)
 }
diff --git a/gocv/gocv_core.hpp b/gocv/gocv_core.hpp
index 9210e09..90074d5 100644
--- a/gocv/gocv_core.hpp
+++ b/gocv/gocv_core.hpp
@@ -2,4 +2,4 @@
 #include <vector>
 #include <iostream>
 
-cv::Mat ToMat_(int row, int col, std::vector<double> data);
+cv::Mat Mat64ToGcvMat_(int row, int col, std::vector<double> data);
diff --git a/gocv/gocv_core.i b/gocv/gocv_core.i
index 47e782e..9f9ed69 100644
--- a/gocv/gocv_core.i
+++ b/gocv/gocv_core.i
@@ -192,6 +192,8 @@ namespace cv {
 
 
    /* ----------------- Mat ----------------- */
+   %rename(GcvMat) Mat;
+
    class Mat
    {
    public:
diff --git a/gocv/gocv_core_test.go b/gocv/gocv_core_test.go
index 4c082fb..c327e3b 100644
--- a/gocv/gocv_core_test.go
+++ b/gocv/gocv_core_test.go
@@ -23,16 +23,16 @@ func TestNewGcvSize2f64(t *testing.T) {
 }
 
 func TestMat(t *testing.T) {
-	mat := NewMat()
-	mat2 := NewMat(mat)
+	mat := NewGcvMat()
+	mat2 := NewGcvMat(mat)
 	spew.Dump(mat2)
 }
 
-func TestToMat(t *testing.T) {
+func TestMat64ToGcvMat(t *testing.T) {
 	mat := mat64.NewDense(3, 2, []float64{
 		0, 1,
 		1.23, 4,
 		-12.3, -4,
 	})
-	spew.Dump(ToMat(mat))
+	spew.Dump(Mat64ToGcvMat(mat))
 }