diff --git a/graphics/surface.cpp b/graphics/surface.cpp
index e0b25f22e95d..c1c676ed0b4b 100644
--- a/graphics/surface.cpp
+++ b/graphics/surface.cpp
@@ -48,6 +48,17 @@ void Surface::drawLine(int x0, int y0, int x1, int y1, uint32 color) {
 		error("Surface::drawLine: bytesPerPixel must be 1, 2, or 4");
 }
 
+void Surface::drawThickLine(int x0, int y0, int x1, int y1, int penX, int penY, uint32 color) {
+	if (format.bytesPerPixel == 1)
+		Graphics::drawThickLine(x0, y0, x1, y1, penX, penY, color, plotPoint<byte>, this);
+	else if (format.bytesPerPixel == 2)
+		Graphics::drawThickLine(x0, y0, x1, y1, penX, penY, color, plotPoint<uint16>, this);
+	else if (format.bytesPerPixel == 4)
+		Graphics::drawThickLine(x0, y0, x1, y1, penX, penY, color, plotPoint<uint32>, this);
+	else
+		error("Surface::drawThickLine: bytesPerPixel must be 1, 2, or 4");
+}
+
 void Surface::create(uint16 width, uint16 height, const PixelFormat &f) {
 	free();
 
diff --git a/graphics/surface.h b/graphics/surface.h
index 018a283aad83..9d91a601e464 100644
--- a/graphics/surface.h
+++ b/graphics/surface.h
@@ -142,9 +142,25 @@ struct Surface {
 	 * @param x1 The x coordinate of the end point.
 	 * @param y1 The y coordinate of the end point.
 	 * @param color The color of the line.
+	 * @note This is just a wrapper around Graphics::drawLine
 	 */
 	void drawLine(int x0, int y0, int x1, int y1, uint32 color);
 
+	/**
+	 * Draw a thick line.
+	 *
+	 * @param x0 The x coordinate of the start point.
+	 * @param y0 The y coordiante of the start point.
+	 * @param x1 The x coordinate of the end point.
+	 * @param y1 The y coordinate of the end point.
+	 * @param penX The width of the pen (thickness in the x direction)
+	 * @param penY The height of the pen (thickness in the y direction)
+	 * @param color The color of the line.
+	 * @note This is just a wrapper around Graphics::drawThickLine
+	 * @note The x/y coordinates of the start and end points are the upper-left most part of the pen
+	 */
+	void drawThickLine(int x0, int y0, int x1, int y1, int penX, int penY, uint32 color);
+
 	/**
 	 * Draw a horizontal line.
 	 *