diff --git a/tools/appliance/definitions/systemvmtemplate/preseed.cfg b/tools/appliance/definitions/systemvmtemplate/preseed.cfg
index 9f7c4d00e64..2127090d62c 100644
--- a/tools/appliance/definitions/systemvmtemplate/preseed.cfg
+++ b/tools/appliance/definitions/systemvmtemplate/preseed.cfg
@@ -55,7 +55,7 @@ d-i partman-auto/expert_recipe string                         \
                       use_filesystem{ } filesystem{ ext4 }    \
                       mountpoint{ / }                         \
               .                                               \
-              50 100 200 ext4                                 \
+              50 100 100 ext4                                 \
                       method{ format } format{ }              \
                       use_filesystem{ } filesystem{ ext4 }    \
                       mountpoint{ /home }                     \
@@ -65,7 +65,7 @@ d-i partman-auto/expert_recipe string                         \
                       use_filesystem{ } filesystem{ ext4 }    \
                       mountpoint{ /usr }                      \
               .                                               \
-              100 40 200 ext4                                 \
+              200 40 300 ext4                                 \
                       method{ format } format{ }              \
                       use_filesystem{ } filesystem{ ext4 }    \
                       mountpoint{ /opt }                      \