diff --git a/tools/releasetools/build_image.py b/tools/releasetools/build_image.py
index 6b593e3..f8cba44 100755
--- a/tools/releasetools/build_image.py
+++ b/tools/releasetools/build_image.py
@@ -256,6 +256,9 @@
       build_command.append(fc_config)
     elif "selinux_fc" in prop_dict:
       build_command.append(prop_dict["selinux_fc"])
+  elif fs_type.startswith("f2fs"):
+    build_command = ["mkf2fsuserimg.sh"]
+    build_command.extend([out_file, prop_dict["partition_size"]])
   else:
     build_command = ["mkyaffs2image", "-f"]
     if prop_dict.get("mkyaffs2_extra_flags", None):
@@ -325,7 +328,9 @@
     copy_prop("fs_type", "fs_type")
     copy_prop("system_size", "partition_size")
   elif mount_point == "data":
+    # Copy the generic fs type first, override with specific one if available.
     copy_prop("fs_type", "fs_type")
+    copy_prop("userdata_fs_type", "fs_type")
     copy_prop("userdata_size", "partition_size")
   elif mount_point == "cache":
     copy_prop("cache_fs_type", "fs_type")
diff --git a/tools/releasetools/common.py b/tools/releasetools/common.py
index 27981cd..701a9cb 100644
--- a/tools/releasetools/common.py
+++ b/tools/releasetools/common.py
@@ -968,7 +968,8 @@
 
 # map recovery.fstab's fs_types to mount/format "partition types"
 PARTITION_TYPES = { "yaffs2": "MTD", "mtd": "MTD",
-                    "ext4": "EMMC", "emmc": "EMMC" }
+                    "ext4": "EMMC", "emmc": "EMMC",
+                    "f2fs": "EMMC" }
 
 def GetTypeAndDevice(mount_point, info):
   fstab = info["fstab"]