diff --git a/reactos/subsystems/win32/win32k/objects/line.c b/reactos/subsystems/win32/win32k/objects/line.c
index 130cfef1854..2214ee90d5b 100644
--- a/reactos/subsystems/win32/win32k/objects/line.c
+++ b/reactos/subsystems/win32/win32k/objects/line.c
@@ -774,7 +774,7 @@ NtGdiPolyDraw(
                 POINT pts[4];
                 pts[0].x = dc->w.CursPosX;
                 pts[0].y = dc->w.CursPosY;
-                RtlCopyMemory(pts + 1, lppt, sizeof(POINT) * 3);
+                RtlCopyMemory(pts + 1, &lppt[i], sizeof(POINT) * 3);
                 IntGdiPolyBezier(dc, pts, 4);
                 i += 2;
             }