diff --git a/meta-oniro-core/recipes-core/images/oniro-image-base-tests.bb b/meta-oniro-core/recipes-core/images/oniro-image-base-tests.bb
index 5669da3fb18dad73eecdb6e8507968b4a1874241..b0d4f96e4715a9f7d551e1360b4b12bdebf9204a 100644
--- a/meta-oniro-core/recipes-core/images/oniro-image-base-tests.bb
+++ b/meta-oniro-core/recipes-core/images/oniro-image-base-tests.bb
@@ -19,3 +19,5 @@ EXTRA_IMAGE_FEATURES:append = " ptest-pkgs"
 # For testing purposes, we want to have an extra ext4 format for the root
 # filesystem.
 IMAGE_FSTYPES:append = " ext4"
+
+ROOT_PARTITION_SIZE = "2500M"