diff --git a/openair2/LAYER2/NR_MAC_COMMON/nr_mac.h b/openair2/LAYER2/NR_MAC_COMMON/nr_mac.h
index 1c8c510ec6..381dce11b2 100644
--- a/openair2/LAYER2/NR_MAC_COMMON/nr_mac.h
+++ b/openair2/LAYER2/NR_MAC_COMMON/nr_mac.h
@@ -119,22 +119,22 @@ typedef NR_BSR_SHORT NR_BSR_SHORT_TRUNCATED;
 
 // Long BSR for all logical channel group ID
 typedef struct {
-  uint8_t Buffer_size7: 8;
-  uint8_t Buffer_size6: 8;
-  uint8_t Buffer_size5: 8;
-  uint8_t Buffer_size4: 8;
-  uint8_t Buffer_size3: 8;
-  uint8_t Buffer_size2: 8;
-  uint8_t Buffer_size1: 8;
-  uint8_t Buffer_size0: 8;
-  uint8_t LcgID0: 1;
-  uint8_t LcgID1: 1;
-  uint8_t LcgID2: 1;
-  uint8_t LcgID3: 1;
-  uint8_t LcgID4: 1;
-  uint8_t LcgID5: 1;
-  uint8_t LcgID6: 1;
-  uint8_t LcgID7: 1;
+  uint8_t LcgID0: 1;        // octet 1 [0]
+  uint8_t LcgID1: 1;        // octet 1 [1]
+  uint8_t LcgID2: 1;        // octet 1 [2]
+  uint8_t LcgID3: 1;        // octet 1 [3]
+  uint8_t LcgID4: 1;        // octet 1 [4]
+  uint8_t LcgID5: 1;        // octet 1 [5]
+  uint8_t LcgID6: 1;        // octet 1 [6]
+  uint8_t LcgID7: 1;        // octet 1 [7]
+  uint8_t Buffer_size0: 8;  // octet 2 [7:0]
+  uint8_t Buffer_size1: 8;  // octet 3 [7:0]
+  uint8_t Buffer_size2: 8;  // octet 4 [7:0]
+  uint8_t Buffer_size3: 8;  // octet 5 [7:0]
+  uint8_t Buffer_size4: 8;  // octet 6 [7:0]
+  uint8_t Buffer_size5: 8;  // octet 7 [7:0]
+  uint8_t Buffer_size6: 8;  // octet 8 [7:0]
+  uint8_t Buffer_size7: 8;  // octet 9 [7:0]
 } __attribute__ ((__packed__)) NR_BSR_LONG;
 
 typedef NR_BSR_LONG NR_BSR_LONG_TRUNCATED;