diff --git a/phhgsi_arm_a/BoardConfig.mk b/phhgsi_arm_a/BoardConfig.mk
index 2cf15bc..b21d690 100644
--- a/phhgsi_arm_a/BoardConfig.mk
+++ b/phhgsi_arm_a/BoardConfig.mk
@@ -2,5 +2,5 @@ include build/make/target/board/generic_arm_a/BoardConfig.mk
 include device/phh/treble/board-base.mk
 
 ifeq ($(BOARD_SYSTEMIMAGE_PARTITION_RESERVED_SIZE),)
-BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1572864000
+BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1313583104
 endif