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 e6cadf24260ce161c7a73624965e8b3662b09f64..a7f228b792bfa42553393f14ac91f3e9f0c0566b 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
@@ -19,5 +19,3 @@ EXTRA_IMAGE_FEATURES:append = " ptest-pkgs debug-tweaks"
 # For testing purposes, we want to have an extra ext4 format for the root
 # filesystem.
 IMAGE_FSTYPES:append = " ext4"
-
-ROOT_PARTITION_SIZE = "2500M"