diff --git a/config/noobs/partitions.json b/config/noobs/partitions.json
index e91964f1fb..73096730fc 100644
--- a/config/noobs/partitions.json
+++ b/config/noobs/partitions.json
@@ -5,7 +5,7 @@
       "filesystem_type": "FAT",
       "partition_size_nominal: "128",
       "want_maximised": "false",
-      "uncompressed_tarball_size": 128,
+      "uncompressed_tarball_size": 110,
       "mkfs_options": ""
     },
     {
@@ -13,7 +13,7 @@
       "filesystem_type": "ext4",
       "partition_size_nominal: "864",
       "want_maximised": "true",
-      "uncompressed_tarball_size": 512,
+      "uncompressed_tarball_size": 2,
       "mkfs_options": ""
     }
   ],