diff --git a/tools/releasetools/build_image.py b/tools/releasetools/build_image.py
index 34b7172..8571d74 100755
--- a/tools/releasetools/build_image.py
+++ b/tools/releasetools/build_image.py
@@ -437,6 +437,8 @@
         sldc_flags = sldc_flags_str.split()
         build_command.append(str(len(sldc_flags)))
         build_command.extend(sldc_flags)
+    f2fs_blocksize = prop_dict.get("f2fs_blocksize", "4096")
+    build_command.extend(["-b", f2fs_blocksize])
   else:
     raise BuildImageError(
         "Error: unknown filesystem type: {}".format(fs_type))
@@ -721,6 +723,7 @@
       "system_f2fs_compress",
       "system_f2fs_sldc_flags",
       "f2fs_sparse_flag",
+      "f2fs_blocksize",
       "skip_fsck",
       "ext_mkuserimg",
       "avb_enable",
@@ -770,6 +773,7 @@
       (True, "{}_extfs_inode_count", "extfs_inode_count"),
       (True, "{}_f2fs_compress", "f2fs_compress"),
       (True, "{}_f2fs_sldc_flags", "f2fs_sldc_flags"),
+      (True, "{}_f2fs_blocksize", "f2fs_block_size"),
       (True, "{}_reserved_size", "partition_reserved_size"),
       (True, "{}_squashfs_block_size", "squashfs_block_size"),
       (True, "{}_squashfs_compressor", "squashfs_compressor"),