diff --git a/ttp/titan_pocket/BoardConfig.mk b/ttp/titan_pocket/BoardConfig.mk
index e1a913e..d54cdf0 100644
--- a/ttp/titan_pocket/BoardConfig.mk
+++ b/ttp/titan_pocket/BoardConfig.mk
@@ -21,3 +21,9 @@ BOARD_ROOT_EXTRA_SYMLINKS += /vendor/firmware_mnt/verinfo:/firmware/verinfo
 # TODO(b/36764215): remove this setting when the generic system image
 # no longer has QCOM-specific directories under /.
 BOARD_SEPOLICY_DIRS += build/make/target/board/generic_arm64/sepolicy
+
+ifeq ($(BOARD_SYSTEMIMAGE_PARTITION_RESERVED_SIZE),)
+BOARD_SYSTEMIMAGE_PARTITION_SIZE := 2147483648
+else
+BOARD_SYSTEMIMAGE_PARTITION_RESERVED_SIZE := 33554432
+endif
\ No newline at end of file