diff --git a/modules/plot/README.md b/modules/plot/README.md
index 5c0cc2c1a..d47b95467 100644
--- a/modules/plot/README.md
+++ b/modules/plot/README.md
@@ -1,6 +1,7 @@
-Plot Module Overview
-====================
+Plot Module
+===========
 
 Created by Nuno Moutinho
 
 This Plot module allows you to easily plot data in 1D or 2D. You can change the size of the window, the limits of the axis and the colors of each element. You can also show in real time the plot you are building or save the plot as an image (png).
+
diff --git a/modules/plot/doc/images/sin_x.png b/modules/plot/doc/pics/sin_x.png
similarity index 100%
rename from modules/plot/doc/images/sin_x.png
rename to modules/plot/doc/pics/sin_x.png
diff --git a/modules/plot/doc/images/x_2.png b/modules/plot/doc/pics/x_2.png
similarity index 100%
rename from modules/plot/doc/images/x_2.png
rename to modules/plot/doc/pics/x_2.png
diff --git a/modules/plot/doc/plot.rst b/modules/plot/doc/plot.rst
index d50bf01e9..04e0e1a7a 100644
--- a/modules/plot/doc/plot.rst
+++ b/modules/plot/doc/plot.rst
@@ -1,5 +1,6 @@
-**********************************
-plot. Module to Plot Data from Mat
-**********************************
+Plot - Module to Plot Data
+==========================
+
+.. highlight:: cpp
 
 This Plot module allows you to easily plot data in 1D or 2D. You can change the size of the window, the limits of the axis and the colors of each element. You can also show in real time the plot you are building or save the plot as an image (png).
diff --git a/modules/plot/include/opencv2/plot.hpp b/modules/plot/include/opencv2/plot.hpp
index d934c27dd..cf43a54cd 100644
--- a/modules/plot/include/opencv2/plot.hpp
+++ b/modules/plot/include/opencv2/plot.hpp
@@ -132,7 +132,7 @@ namespace cv
         Plot(cv::Mat _plotDataX, cv::Mat _plotDataY)
         {
             //f the matrix is not Nx1 or 1xN
-            if(_plotDataX.cols > 1 && _plotDataX.rows > 1 || _plotDataY.cols > 1 && _plotDataY.rows > 1)
+            if((_plotDataX.cols > 1 && _plotDataX.rows > 1) || (_plotDataY.cols > 1 && _plotDataY.rows > 1))
             {
                 std::cout << "ERROR: Plot data must be a 1xN or Nx1 matrix." << std::endl;
                 exit(0);