diff --git a/src/disk.sh b/src/disk.sh
index 14df45b..340b444 100644
--- a/src/disk.sh
+++ b/src/disk.sh
@@ -434,7 +434,7 @@ addDisk () {
 
   if [[ "${DISK_SPACE,,}" == "max" ]]; then
 
-    local SPARE=2147483648
+    local SPARE=536870912
     SPACE=$(df --output=avail -B 1 "$DIR" | tail -n 1)
     (( SPACE < SPARE )) && SPACE="$SPARE" || SPACE=$((SPACE-SPARE))
     GB=$(( SPACE/1073741824 ))