diff --git a/src/ui/labelwidget.c b/src/ui/labelwidget.c

index a9a2d033..d6cc31cb 100644

--- a/src/ui/labelwidget.c

+++ b/src/ui/labelwidget.c

@@ -30,6 +30,8 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */

#include "keys.h"

#include "touch.h"



+#include <SDL_version.h>

+

struct Impl_LabelWidget {

 iWidget widget;

 iString srcLabel;

@@ -295,8 +297,16 @@ static void draw_LabelWidget_(const iLabelWidget *d) {

     iRect frameRect = adjusted_Rect(rect, zero_I2(), init1_I2(-1));

     if (isButton) {

         iInt2 points[] = {

- bottomLeft_Rect(frameRect), topLeft_Rect(frameRect), topRight_Rect(frameRect),

- bottomRight_Rect(frameRect), bottomLeft_Rect(frameRect)

+ bottomLeft_Rect(frameRect),

+ topLeft_Rect(frameRect),

+ topRight_Rect(frameRect),

+#if SDL_VERSION_ATLEAST(2, 0, 16) && defined (iPlatformApple)

+ /* A very curious regression in SDL 2.0.16 on macOS. */

+ addX_I2(bottomRight_Rect(frameRect), -1),

+#else

+ bottomRight_Rect(frameRect),

+#endif

+ bottomLeft_Rect(frameRect)

         };

         drawLines_Paint(&p, points + 2, 3, frame2);

         drawLines_Paint(