diff --git a/debi.sh b/debi.sh
index 2405e11..5d5dfa6 100755
--- a/debi.sh
+++ b/debi.sh
@@ -612,20 +612,23 @@ EOF
     $save_preseed << 'EOF'
 d-i partman-auto/expert_recipe string \
     naive :: \
-        1 1 8 free \
-            $iflabel{ gpt } \
-            $reusemethod{ } \
-            method{ biosgrub } \
-        . \
 EOF
     if [ "$efi" = true ]; then
         $save_preseed << 'EOF'
-        106 106 1075 free \
+        106 106 106 free \
             $iflabel{ gpt } \
             $reusemethod{ } \
             method{ efi } \
             format{ } \
         . \
+EOF
+    else
+        $save_preseed << 'EOF'
+        1 1 1 free \
+            $iflabel{ gpt } \
+            $reusemethod{ } \
+            method{ biosgrub } \
+        . \
 EOF
     fi