diff --git a/src/backend/gdi.c b/src/backend/gdi.c
index d6ad07a..5d89419 100644
--- a/src/backend/gdi.c
+++ b/src/backend/gdi.c
@@ -589,8 +589,8 @@ HCURSOR MwLLGDICreateCursor(MwCursor* image, MwCursor* mask) {
 	int	y, x, ys, xs;
 
 	xs = -mask->x + image->x;
-	ys = MwCursorDataHeight + mask->y;
-	ys = MwCursorDataHeight + image->y - ys;
+	ys = mask->height + mask->y;
+	ys = image->height + image->y - ys;
 
 	memset(dmask, 0xff, (MwCursorDataHeight / 8) * MwCursorDataHeight);
 	memset(dimage, 0, (MwCursorDataHeight / 8) * MwCursorDataHeight);
diff --git a/src/backend/x11.c b/src/backend/x11.c
index cd9e882..de69fff 100644
--- a/src/backend/x11.c
+++ b/src/backend/x11.c
@@ -811,8 +811,8 @@ Cursor MwLLX11CreateCursor(Display* display, MwCursor* image, MwCursor* mask) {
 	XColor	cfg, cbg;
 
 	xs = -mask->x + image->x;
-	ys = MwCursorDataHeight + mask->y;
-	ys = MwCursorDataHeight + image->y - ys;
+	ys = mask->height + mask->y;
+	ys = image->height + image->y - ys;
 
 	memset(cimage->data, 0, cimage->bytes_per_line * cimage->height);
 	memset(cmask->data, 0, cmask->bytes_per_line * cmask->height);