diff --git a/src/macos.m b/src/macos.m

index 911f5e3a..4ad267c1 100644

--- a/src/macos.m

+++ b/src/macos.m

@@ -429,12 +429,48 @@ static void trackSwipe_(NSEvent *event) {

#endif



static int swipeDir_ = 0;

+static int preventTapGlitch_ = 0;



static iBool processScrollWheelEvent_(NSEvent *event) {

 const iBool isPerPixel = (event.hasPreciseScrollingDeltas != 0);

 const iBool isInertia  = (event.momentumPhase & (NSEventPhaseBegan | NSEventPhaseChanged)) != 0;

 const iBool isEnded    = event.scrollingDeltaX == 0.0f && event.scrollingDeltaY == 0.0f && !isInertia;

 const iWindow *win     = &get_MainWindow()->base;

+ if (isPerPixel) {

+ /* On macOS 12.1, stopping ongoing inertia scroll with a tap seems to sometimes produce

+ spurious large scroll events. */

+ switch (preventTapGlitch_) {

+ case 0:

+ if (isInertia && event.momentumPhase == NSEventPhaseChanged) {

+ preventTapGlitch_++;

+ }

+ else {

+ preventTapGlitch_ = 0;

+ }

+ break;

+ case 1:

+ if (event.scrollingDeltaY == 0 && event.momentumPhase == NSEventPhaseEnded) {

+ preventTapGlitch_++;

+ }

+ break;

+ case 2:

+ if (event.scrollingDeltaY == 0 && event.momentumPhase == 0 && isEnded) {

+ preventTapGlitch_++;

+ }

+ else {

+ preventTapGlitch_ = 0;

+ }

+ break;

+ case 3:

+ if (event.scrollingDeltaY != 0 && event.momentumPhase == 0 && !isInertia) {

+ preventTapGlitch_ = 0;

+ // printf("SPURIOUS\n"); fflush(stdout);

+ return iTrue;

+ }

+ preventTapGlitch_ = 0;

+ break;

+ }

+ }

 /* Post corresponding MOUSEWHEEL events. */

 SDL_MouseWheelEvent e = { .type = SDL_MOUSEWHEEL };

 e.timestamp = SDL_GetTicks();

@@ -464,7 +500,8 @@ static iBool processScrollWheelEvent_(NSEvent *event) {

     e.x = -event.scrollingDeltaX;

     e.y = iSign(event.scrollingDeltaY);

 }

-// printf("#### dx:%d dy:%d phase:%ld end:%d\n", e.x, e.y, (long) event.momentumPhase, isEnded); fflush(stdout);

+ // printf("#### [%d] dx:%d dy:%d phase:%ld inertia:%d end:%d\n", preventTapGlitch_, e.x, e.y, (long) event.momentumPhase,

+ // isInertia, isEnded); fflush(stdout);

 SDL_PushEvent((SDL_Event *) &e);

#if 0

     /* On macOS, we handle both trackpad and mouse events. We expect SDL to identify