diff --git a/extract-updater-rofs.sh b/extract-updater-rofs.sh
index c53a670..e794186 100644
--- a/extract-updater-rofs.sh
+++ b/extract-updater-rofs.sh
@@ -1,5 +1,6 @@
 #   extract-updater-rofs
 # Extracts firmware CIAs from ROFS containers for some gigaleak SystemUpdaters.
+# Place in same directory as ROFS named "romfs.bin"
 
 echo "Finding CIA headers in file..."
 od -t x -A d romfs.bin | grep "00002020 00000000 00000a00 00000350" | sed 's/ .*//' | sed 's/^0*//' > romfs-dir.txt
@@ -71,15 +72,14 @@ do
     i+=2
 done
 
-i=$((i - 1))
 START_HEADER=$( tail -n 1 romfs-dir.txt )
-NEXT_HEADER=$(xxd romfs.bin | grep "226e 6f6e 6522" | sed 's/: .*//' | sed 's/^0*//');
+NEXT_HEADER=$((16#$(xxd romfs.bin | grep "226e 6f6e 6522" | sed 's/: .*//' | sed 's/^0*//')));
 # Find "226e 6f6e 6522" as it is the last predictable data to mark the end of Contents.cnt and the last CIA.
 # Upsettingly I have to use xxd because od wouldn't turn up any results for this... I liked od's formatting more :despair:
 echo "    Check CIA length"
-echo "CIA $i header at            ${START_HEADER}"
+echo "Final CIA header at          ${START_HEADER}"
 echo "Contents.cnt end at         ${NEXT_HEADER}"
-echo "Finding end of CIA $i from Contents.cnt end..."
+echo "Finding end of final CIA from Contents.cnt end..."
 y="00"
 x=16
 # Start x as 16 to skip changing data and go right to padding
@@ -93,10 +93,10 @@ while [ "$y" = "00" ]; do
 done
 echo "End found!"
 echo "Non-zerobyte ($y) at $((NEXT_HEADER - x))"
-echo "Padding from CIA $i to Content.cnt end is $((x - 1)) bytes."
+echo "Padding from final CIA to Content.cnt end is $((x - 1)) bytes."
 echo "    Extract CIA"
 CIA_LENGTH=$(((NEXT_HEADER - START_HEADER) - x + 1))
-dd skip=${START_HEADER} count=${CIA_LENGTH} if=romfs.bin of="$i.cia" bs=1
-echo "CIA $i output as '$i.cia', ${CIA_LENGTH} bytes."
+dd skip=${START_HEADER} count=${CIA_LENGTH} if=romfs.bin of="0.cia" bs=1
+echo "Final CIA output as '0.cia', ${CIA_LENGTH} bytes."
 echo "================================================="
-echo "All CIAs extracted from RomFS!"
+echo "All CIAs extracted from RomFS!"
\ No newline at end of file