diff --git a/doc/sources/images/line-instruction.png b/doc/sources/images/line-instruction.png
new file mode 100644
index 000000000..d6973d0ee
Binary files /dev/null and b/doc/sources/images/line-instruction.png differ
diff --git a/kivy/graphics/vertex_instructions_line.pxi b/kivy/graphics/vertex_instructions_line.pxi
index 692ca35ec..965c71680 100644
--- a/kivy/graphics/vertex_instructions_line.pxi
+++ b/kivy/graphics/vertex_instructions_line.pxi
@@ -40,6 +40,9 @@ cdef class Line(VertexInstruction):
        Additionally, if the current color have an alpha < 1.0, stencil will be
        used internally to draw the line.
 
+    .. image:: images/line-instruction.png
+        :align: center
+
     :Parameters:
         `points`: list
             List of points in the format (x1, y1, x2, y2...)