diff --git a/src/gwin/gwin.c b/src/gwin/gwin.c
index ab2e2981..ee0a7222 100644
--- a/src/gwin/gwin.c
+++ b/src/gwin/gwin.c
@@ -226,12 +226,6 @@ void gwinDrawLine(GHandle gh, coord_t x0, coord_t y0, coord_t x1, coord_t y1) {
 	_gwinDrawEnd(gh);
 }
 
-void gwinDrawThickLine(GHandle gh, coord_t x0, coord_t y0, coord_t x1, coord_t y1, coord_t width, bool_t round) {
-	if (!_gwinDrawStart(gh)) return;
-	gdispGDrawThickLine(gh->display, gh->x+x0, gh->y+y0, gh->x+x1, gh->y+y1, gh->color, width, round);
-	_gwinDrawEnd(gh);
-}
-
 void gwinDrawBox(GHandle gh, coord_t x, coord_t y, coord_t cx, coord_t cy) {
 	if (!_gwinDrawStart(gh)) return;
 	gdispGDrawBox(gh->display, gh->x+x, gh->y+y, cx, cy, gh->color);
@@ -350,6 +344,11 @@ void gwinBlitArea(GHandle gh, coord_t x, coord_t y, coord_t cx, coord_t cy, coor
 		gdispGFillConvexPoly(gh->display, tx+gh->x, ty+gh->y, pntarray, cnt, gh->color);
 		_gwinDrawEnd(gh);
 	}
+	void gwinDrawThickLine(GHandle gh, coord_t x0, coord_t y0, coord_t x1, coord_t y1, coord_t width, bool_t round) {
+		if (!_gwinDrawStart(gh)) return;
+		gdispGDrawThickLine(gh->display, gh->x+x0, gh->y+y0, gh->x+x1, gh->y+y1, gh->color, width, round);
+		_gwinDrawEnd(gh);
+	}
 #endif
 
 #if GDISP_NEED_IMAGE
diff --git a/src/gwin/sys_defs.h b/src/gwin/sys_defs.h
index 169b4498..4b103d11 100644
--- a/src/gwin/sys_defs.h
+++ b/src/gwin/sys_defs.h
@@ -600,24 +600,6 @@ extern "C" {
 	 */
 	void gwinDrawLine(GHandle gh, coord_t x0, coord_t y0, coord_t x1, coord_t y1);
 
-	/**
-	 * @brief	Draw a thick line in the window
-	 * @details	The line thickness is specified in pixels. The line ends can
-	 *		be selected to be either flat or round.
-	 * @note	Uses gdispGFillConvexPoly() internally to perform the drawing.
-	 * @note	Uses the current foreground color to draw the line
-	 * 
-	 * @param[in] gh		The window handle
-	 * @param[in] x0,y0		The start position
-	 * @param[in] x1,y1		The end position
-	 * @param[in] color		The color to use
-	 * @param[in] width		The width of the line
-	 * @param[in] round		Use round ends for the line
-	 * 
-	 * @api
-	 */
-	void gwinDrawThickLine(GHandle gh, coord_t x0, coord_t y0, coord_t x1, coord_t y1, coord_t width, bool_t round);
-
 	/**
 	 * @brief   Draw a box in the window
 	 * @note	Uses the current foreground color to draw the box
@@ -910,6 +892,23 @@ extern "C" {
 		 * @api
 		 */
 		void gwinFillConvexPoly(GHandle gh, coord_t tx, coord_t ty, const point *pntarray, unsigned cnt);
+	
+		/**
+		 * @brief	Draw a thick line in the window
+		 * @details	The line thickness is specified in pixels. The line ends can
+		 *		be selected to be either flat or round.
+		 * @note	Uses gdispGFillConvexPoly() internally to perform the drawing.
+		 * @note	Uses the current foreground color to draw the line
+		 * 
+		 * @param[in] gh		The window handle
+		 * @param[in] x0,y0		The start position
+		 * @param[in] x1,y1		The end position
+		 * @param[in] width		The width of the line
+		 * @param[in] round		Use round ends for the line
+		 * 
+		 * @api
+		 */
+		void gwinDrawThickLine(GHandle gh, coord_t x0, coord_t y0, coord_t x1, coord_t y1, coord_t width, bool_t round);
 	#endif
 
 /*-------------------------------------------------