2 files changed, 5 insertions, 3 deletions

diff --git a/quantum/split_common/transactions.c b/quantum/split_common/transactions.c
index ec34bbba60..0ae91ba363 100644
--- a/quantum/split_common/transactions.c
+++ b/quantum/split_common/transactions.c
@@ -795,13 +795,14 @@ static void haptic_handlers_slave(matrix_row_t master_matrix[], matrix_row_t sla
 static bool activity_handlers_master(matrix_row_t master_matrix[], matrix_row_t slave_matrix[]) {
     static uint32_t             last_update = 0;
     split_slave_activity_sync_t activity_sync;
-    activity_sync.matrix_timestamp  = last_matrix_activity_time();
-    activity_sync.encoder_timestamp = last_encoder_activity_time();
+    activity_sync.matrix_timestamp          = last_matrix_activity_time();
+    activity_sync.encoder_timestamp         = last_encoder_activity_time();
+    activity_sync.pointing_device_timestamp = last_pointing_device_activity_time();
     return send_if_data_mismatch(PUT_ACTIVITY, &last_update, &activity_sync, &split_shmem->activity_sync, sizeof(activity_sync));
 }
 
 static void activity_handlers_slave(matrix_row_t master_matrix[], matrix_row_t slave_matrix[]) {
-    set_activity_timestamps(split_shmem->activity_sync.matrix_timestamp, split_shmem->activity_sync.encoder_timestamp);
+    set_activity_timestamps(split_shmem->activity_sync.matrix_timestamp, split_shmem->activity_sync.encoder_timestamp, split_shmem->activity_sync.pointing_device_timestamp);
 }
 
 // clang-format off
diff --git a/quantum/split_common/transport.h b/quantum/split_common/transport.h
index 8f8c38461e..13b1e56814 100644
--- a/quantum/split_common/transport.h
+++ b/quantum/split_common/transport.h
@@ -127,6 +127,7 @@ typedef struct _split_slave_haptic_sync_t {
 typedef struct _split_slave_activity_sync_t {
     uint32_t matrix_timestamp;
     uint32_t encoder_timestamp;
+    uint32_t pointing_device_timestamp;
 } split_slave_activity_sync_t;
 #endif // defined(SPLIT_ACTIVITY_ENABLE)