diff --git a/scripts/symbols.def b/scripts/symbols.def
index b562ac63f..9cfeea28d 100644
--- a/scripts/symbols.def
+++ b/scripts/symbols.def
@@ -15,7 +15,6 @@ EXPORTS
  png_set_compression_buffer_size @7
  png_set_longjmp_fn @8
  png_longjmp @9
- png_reset_zstream @10
  png_create_read_struct_2 @11
  png_create_write_struct_2 @12
  png_write_sig @13
@@ -24,7 +23,6 @@ EXPORTS
  png_write_chunk_data @16
  png_write_chunk_end @17
  png_create_info_struct @18
- png_info_init_3 @19
  png_write_info_before_PLTE @20
  png_write_info @21
  png_read_info @22
@@ -103,7 +101,6 @@ EXPORTS
  png_malloc_warn @96
  png_free @97
  png_free_data @98
- png_data_freer @99
  png_malloc_default @100
  png_free_default @101
  png_error @102