diff --git a/tools/boot/potato/boot-powerpc.calc b/tools/boot/potato/boot-powerpc.calc
index f16a7732..17423519 100644
--- a/tools/boot/potato/boot-powerpc.calc
+++ b/tools/boot/potato/boot-powerpc.calc
@@ -1,4 +1,4 @@
-BOOT_SIZE_1=120
+BOOT_SIZE_1=50
 
 BOOT_SIZE_2=20