diff --git a/src/evdev-frame.h b/src/evdev-frame.h
index e544aaa4..341446cf 100644
--- a/src/evdev-frame.h
+++ b/src/evdev-frame.h
@@ -550,10 +550,12 @@ evdev_frame_append(struct evdev_frame *frame,
 		   size_t nevents)
 {
 	assert(nevents > 0);
+	int syn_report_value = 0;
 
 	for (size_t i = 0; i < nevents; i++) {
 		if (evdev_usage_eq(events[i].usage, EVDEV_SYN_REPORT)) {
 			nevents = i;
+			syn_report_value = events[i].value;
 			break;
 		}
 	}
@@ -568,14 +570,24 @@ evdev_frame_append(struct evdev_frame *frame,
 		frame->count += nevents;
 	}
 
+	frame->events[frame->count - 1] = (struct evdev_event){
+		.usage = evdev_usage_from_uint32_t(EVDEV_SYN_REPORT),
+		.value = syn_report_value,
+	};
+
 	return 0;
 }
 
 static inline int
 evdev_frame_append_one(struct evdev_frame *frame, evdev_usage_t usage, int32_t value)
 {
-	if (evdev_usage_eq(usage, EVDEV_SYN_REPORT))
+	if (evdev_usage_eq(usage, EVDEV_SYN_REPORT)) {
+		frame->events[frame->count - 1] = (struct evdev_event){
+			.usage = evdev_usage_from_uint32_t(EVDEV_SYN_REPORT),
+			.value = value,
+		};
 		return 0;
+	}
 
 	if (frame->count >= frame->max_size)
 		return -ENOMEM;
diff --git a/test/test-utils.c b/test/test-utils.c
index e572f3da..9032b377 100644
--- a/test/test-utils.c
+++ b/test/test-utils.c
@@ -3168,6 +3168,49 @@ START_TEST(evdev_frames)
 				     ARRAY_LENGTH(events));
 		litest_assert_int_eq(frame->max_size, ARRAY_LENGTH(events));
 	}
+	{
+		struct evdev_event events[] = {
+			{
+				.usage = U(EVDEV_ABS_X),
+				.value = 1,
+			},
+			{
+				.usage = U(EVDEV_ABS_Y),
+				.value = 2,
+			},
+			{
+				.usage = U(EVDEV_SYN_REPORT),
+				.value = 1,
+			},
+		};
+
+		_unref_(evdev_frame) *frame = evdev_frame_new(3);
+		int rc = evdev_frame_append(frame, events, 3);
+		litest_assert_neg_errno_success(rc);
+
+		litest_assert_int_eq(evdev_frame_get_count(frame),
+				     ARRAY_LENGTH(events));
+		litest_assert_int_eq(frame->max_size, ARRAY_LENGTH(events));
+
+		size_t nevents;
+		rc = memcmp(evdev_frame_get_events(frame, &nevents),
+			    events,
+			    sizeof(events));
+		litest_assert_int_eq(rc, 0);
+		litest_assert_int_eq(nevents, ARRAY_LENGTH(events));
+
+		for (int v = 0; v < 2; v++) {
+			/* Appending SYN_REPORT changes the value to zero */
+			rc = evdev_frame_append_one(frame, U(EVDEV_SYN_REPORT), v);
+			litest_assert_neg_errno_success(rc);
+			litest_assert_int_eq(evdev_frame_get_count(frame),
+					     ARRAY_LENGTH(events));
+			struct evdev_event *evs =
+				evdev_frame_get_events(frame, &nevents);
+			litest_assert(evdev_usage_eq(evs[2].usage, EVDEV_SYN_REPORT));
+			litest_assert_int_eq(evs[2].value, v);
+		}
+	}
 }
 END_TEST