diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index 897869ce22aa2b0984f3f1abdb41f05fe468e1a4..3315c9f0828a62cea511048e13b7f6a35af4df09 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -290,6 +290,7 @@ CONFIG_BTRFS_FS_POSIX_ACL=y
 CONFIG_NILFS2_FS=m
 CONFIG_AUTOFS4_FS=m
 CONFIG_FUSE_FS=m
+CONFIG_OVERLAY_FS=m
 CONFIG_ISO9660_FS=y
 CONFIG_UDF_FS=m
 CONFIG_MSDOS_FS=y
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index 7677850e2b0766d332e6006c4a44f9b4d114acf4..dbcef637641df2905281080a964dffa3d7604fe6 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -242,6 +242,7 @@ CONFIG_BTRFS_FS_POSIX_ACL=y
 CONFIG_NILFS2_FS=m
 CONFIG_AUTOFS4_FS=m
 CONFIG_FUSE_FS=m
+CONFIG_OVERLAY_FS=m
 CONFIG_ISO9660_FS=y
 CONFIG_UDF_FS=m
 CONFIG_MSDOS_FS=y
diff --git a/arch/powerpc/configs/pseries_le_defconfig b/arch/powerpc/configs/pseries_le_defconfig
index acb611a268365809ad1c496f22ce36c1c7dd9a33..14a7a7ab5056c8236797711f505429e7bf8b699d 100644
--- a/arch/powerpc/configs/pseries_le_defconfig
+++ b/arch/powerpc/configs/pseries_le_defconfig
@@ -243,6 +243,7 @@ CONFIG_BTRFS_FS_POSIX_ACL=y
 CONFIG_NILFS2_FS=m
 CONFIG_AUTOFS4_FS=m
 CONFIG_FUSE_FS=m
+CONFIG_OVERLAY_FS=m
 CONFIG_ISO9660_FS=y
 CONFIG_UDF_FS=m
 CONFIG_MSDOS_FS=y