diff --git a/utils/genrandconfig b/utils/genrandconfig
index ab1f6f43b1..70af84f002 100755
--- a/utils/genrandconfig
+++ b/utils/genrandconfig
@@ -443,7 +443,7 @@ def fixup_config(sysinfo, configfile):
         configlines.remove('BR2_TARGET_OPTEE_OS=y\n')
         configlines.remove('BR2_TARGET_OPTEE_OS_PLATFORM=""\n')
 
-    if 'BR2_TARGET_ROOTFS_EXT2_GEN=y\n' in configlines and \
+    if 'BR2_TARGET_ROOTFS_EXT2=y\n' in configlines and \
        'BR2_TARGET_ROOTFS_EXT2_SIZE="60M"\n' in configlines:
         configlines.remove('BR2_TARGET_ROOTFS_EXT2_SIZE="60M"\n')
         configlines.append('BR2_TARGET_ROOTFS_EXT2_SIZE="%s"\n' % ROOTFS_SIZE)