diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/miband/MiBandService.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/miband/MiBandService.java
index 3d34b439..e436a290 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/miband/MiBandService.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/miband/MiBandService.java
@@ -178,13 +178,14 @@ public class MiBandService {
 
     */
 
-    /* MODES: unknown
-
-	public static final MODE_REGULAR_DATA_LEN_BYTE = 0x0t;
-
-	public static final MODE_REGULAR_DATA_LEN_MINITE = 0x1t
+    /* MODES: probably related to the sample data structure
 	*/
 
+	public static final byte MODE_REGULAR_DATA_LEN_BYTE = 0x0;
+
+    // was MODE_REGULAR_DATA_LEN_MINITE
+	public static final byte MODE_REGULAR_DATA_LEN_MINUTE = 0x1;
+
     /* PROFILE: unknown
 
 	public static final PROFILE_STATE_UNKNOWN:I = 0x0
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/operations/FetchActivityOperation.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/operations/FetchActivityOperation.java
index 8f57d02e..90ac55c2 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/operations/FetchActivityOperation.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/operations/FetchActivityOperation.java
@@ -111,14 +111,14 @@ public class FetchActivityOperation extends AbstractBTLEOperation<MiBandSupport>
 
             // counter of all data held by the band
             int totalDataToRead = (value[7] & 0xff) | ((value[8] & 0xff) << 8);
-            totalDataToRead *= (dataType == 1) ? 3 : 1;
+            totalDataToRead *= (dataType == MiBandService.MODE_REGULAR_DATA_LEN_MINUTE) ? 3 : 1;
 
 
             // counter of this data block
             int dataUntilNextHeader = (value[9] & 0xff) | ((value[10] & 0xff) << 8);
-            dataUntilNextHeader *= (dataType == 1) ? 3 : 1;
+            dataUntilNextHeader *= (dataType == MiBandService.MODE_REGULAR_DATA_LEN_MINUTE) ? 3 : 1;
 
-            // there is a total of totalDataToRead that will come in chunks (3 bytes per minute if dataType == 1),
+            // there is a total of totalDataToRead that will come in chunks (3 bytes per minute if dataType == 1 (MiBandService.MODE_REGULAR_DATA_LEN_MINUTE)),
             // these chunks are usually 20 bytes long and grouped in blocks
             // after dataUntilNextHeader bytes we will get a new packet of 11 bytes that should be parsed
             // as we just did