diff --git a/mtx-1.3.12/mtx.c b/mtx-1.3.12/mtx.c
index a4f4d96..dd3e958 100644
--- a/mtx-1.3.12/mtx.c
+++ b/mtx-1.3.12/mtx.c
@@ -1040,6 +1040,17 @@ int parse_args(void)
 			device = argv[i++];
 			open_device(); /* open the device and do a status scan on it... */
 		}
+		else if (strcmp(argv[i], "-a") == 0)
+		{
+			printf("absolute addressing\n");
+			i++;
+                        if (i >= argc)
+                        {
+                                Usage();
+                        }
+			absolute_addressing = 1;
+		}
+
 		else
 		{
 			cmd_tbl_idx = 0;		/* default to the first command... */
diff --git a/mtx-1.3.12/mtx.h b/mtx-1.3.12/mtx.h
index a56282d..db708bb 100644
--- a/mtx-1.3.12/mtx.h
+++ b/mtx-1.3.12/mtx.h
@@ -565,7 +565,10 @@ TransportElementDescriptor_T;
 /* Now for element status data; */
 
 typedef unsigned char barcode[37];
+//typedef unsigned char serialnumber[13];
 typedef unsigned char serialnumber[13];
+typedef unsigned char devicetype[17];
+
 
 typedef struct ElementStatus {
 
@@ -575,7 +578,7 @@ typedef struct ElementStatus {
   int *DataTransferElementAddress;  /* array. */
   int *DataTransferElementSourceStorageElementNumber; /* array */
   int *DataTransferElementPhysicalLocation; /*array */ 
-  serialnumber *DataTransferElementProductId; /*array */ 
+  devicetype *DataTransferElementProductId; /*array */ 
   serialnumber *DataTransferElementSerialNumber; /*array */ 
   barcode *StorageElementPhysicalLocation; /*array */ 
   barcode *DataTransferPrimaryVolumeTag; /* array. */
diff --git a/mtx-1.3.12/mtx.spec b/mtx-1.3.12/mtx.spec
index 6320502..9667f40 100644
--- a/mtx-1.3.12/mtx.spec
+++ b/mtx-1.3.12/mtx.spec
@@ -1,6 +1,6 @@
 Name: mtx
 Version: 1.3.12
-Release: 15fnal%{?dist}
+Release: 19fnal_jinr%{?dist}
 Summary: SCSI media changer control program
 License: GPLv2
 Group: Applications/System
@@ -51,6 +51,10 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Thu Dec 07 2023 Alexander Moibenko <moibenko@jinr.ru> - 1.3.12-19fnal
+- mtx CLI hasn hidden option (-a) to show status information with absolute addresses
+- Fixed problem seen in JINR where serial number was missing few last symbols 
+
 * Wed Jan 23 2019 Alexander Moibenko <moibenko@fnal.gov> - 1.3.12-15fnal
 - For absolute_addressing refresh elements data when status command is executed. This is needed to update tape library infortion in the calling program.
 - Changes to allow to use mtx as library and show absolute transfer and storage elements as output of status call
diff --git a/mtx-1.3.12/mtxl.c b/mtx-1.3.12/mtxl.c
index e577a57..3f0fe75 100644
--- a/mtx-1.3.12/mtxl.c
+++ b/mtx-1.3.12/mtxl.c
@@ -563,7 +563,7 @@ static ElementStatus_T *AllocateElementData(ElementModeSense_T *mode_sense)
 	retval->DataTransferElementPhysicalLocation =
 		(int *)xzmalloc(sizeof(int) * (mode_sense->NumDataTransfer + 1));
 	retval->DataTransferElementProductId =
-		(serialnumber *)xzmalloc(sizeof(serialnumber) * (mode_sense->NumDataTransfer + 1));
+		(devicetype *)xzmalloc(sizeof(devicetype) * (mode_sense->NumDataTransfer + 1));
 	retval->DataTransferElementSerialNumber =
 		(serialnumber *)xzmalloc(sizeof(serialnumber) * (mode_sense->NumDataTransfer + 1));
 	retval->StorageElementPhysicalLocation =
@@ -618,9 +618,16 @@ void copy_physical_location(unsigned char *src, unsigned char *dest)
 void copy_char_buffer(unsigned char *src, unsigned char *dest, int num)
 {
   int i;
-  while ((*src< 32) || (*src > 127)) {
+  char *dest_tmp;
+  dest_tmp = dest;
+  while ((*src<= 32) || (*src > 127)) {
     src++;
   }
+  for (i=0; i < num; i++)
+ {
+   *dest_tmp++ = 0;
+ }
+
   for (i=0; i < num; i++)
  {
    *dest = *src++;