diff --git a/tools/release.sh b/tools/release.sh
index aaa0189b6..3d0db19c1 100755
--- a/tools/release.sh
+++ b/tools/release.sh
@@ -59,7 +59,7 @@ ISO=minix.iso
 ISOGZ=minix.iso.gz
 RAM=/dev/ram
 BS=4096
-USRMB=350
+USRMB=400
 USRBLOCKS="`expr $USRMB \* 1024 \* 1024 / $BS`"
 ROOTMB=2
 ROOTBLOCKS="`expr $ROOTMB \* 1024 \* 1024 / $BS`"