diff --git a/btrfs-du b/btrfs-du
index 6c5e16f..9be9847 100755
--- a/btrfs-du
+++ b/btrfs-du
@@ -114,6 +114,7 @@ EXC_=( $( awk '{ print $3 }' <<< "$OUT" ) )
 for (( i = 0 ; i < ${#ID__[@]} ; i++ )); do
   TOT[${ID__[$i]}]=$( bytesToHumanIEC ${TOT_[$i]} )
   EXC[${ID__[$i]}]=$( bytesToHumanIEC ${EXC_[$i]} )
+  EXC_NUM[${ID__[$i]}]=${EXC_[$i]}
 done
 
 ## naming data
@@ -139,7 +140,7 @@ printf "$separatorLine"
 ## matching by IDs in btrfs subvolume list
 for (( i = 0 ; i < ${#ID__[@]} ; i++ )); do
   printf "$formatMask" ${NAME[${ID__[$i]}]} "${TOT[${ID__[$i]}]}" "${EXC[${ID__[$i]}]}" ${ID__[$i]}
-  EXC_TMP=${EXC_[$i]}
+  EXC_TMP=EXC_NUM[${ID__[$i]}]
   EXCL_TOTAL=$(( EXCL_TOTAL + EXC_TMP ))
 done