diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/xiaomi/activity/impl/DailyDetailsParser.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/xiaomi/activity/impl/DailyDetailsParser.java
index 35d1969940..a35678b00b 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/xiaomi/activity/impl/DailyDetailsParser.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/xiaomi/activity/impl/DailyDetailsParser.java
@@ -39,6 +39,7 @@ import nodomain.freeyourgadget.gadgetbridge.entities.User;
 import nodomain.freeyourgadget.gadgetbridge.entities.XiaomiActivitySample;
 import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
 import nodomain.freeyourgadget.gadgetbridge.model.ActivitySample;
+import nodomain.freeyourgadget.gadgetbridge.model.DeviceType;
 import nodomain.freeyourgadget.gadgetbridge.service.devices.xiaomi.activity.XiaomiActivityFileId;
 import nodomain.freeyourgadget.gadgetbridge.service.devices.xiaomi.activity.XiaomiActivityParser;
 import nodomain.freeyourgadget.gadgetbridge.util.GB;
@@ -85,6 +86,7 @@ public class DailyDetailsParser extends XiaomiActivityParser {
         timestamp.setTime(fileId.getTimestamp());
 
         final List<XiaomiActivitySample> samples = new ArrayList<>();
+        final boolean isMb9a = gbDevice.getType() == DeviceType.MIBAND9ACTIVE;
         while (buf.position() < buf.limit()) {
             complexParser.reset();
 
@@ -164,6 +166,10 @@ public class DailyDetailsParser extends XiaomiActivityParser {
                     // TODO
                 }
             }
+            if (isMb9a) {
+                // FIXME this is very hacky, but I can't understand why we miss 1 byte per sample on the mb9a
+                buf.get();
+            }
 
             if (version >= 4) {
                 // TODO: light value (short)