diff --git a/c_src/vix.c b/c_src/vix.c
index 3bac22b..a097db9 100644
--- a/c_src/vix.c
+++ b/c_src/vix.c
@@ -153,10 +153,11 @@ static ErlNifFunc nif_funcs[] = {
      0},
 
     /* VipsForeign */
-    {"nif_foreign_find_load", 1, nif_foreign_find_load,
-     ERL_NIF_DIRTY_JOB_IO_BOUND}, // it might read bytes form the file
+    {"nif_foreign_find_load", 1, nif_foreign_find_load, 0},
     {"nif_foreign_find_save", 1, nif_foreign_find_save, 0},
-    {"nif_foreign_find_load_buffer", 1, nif_foreign_find_load_buffer, 0},
+    {"nif_foreign_find_load_buffer", 1, nif_foreign_find_load_buffer,
+     ERL_NIF_DIRTY_JOB_IO_BOUND},
+    // it might read bytes form the file
     {"nif_foreign_find_save_buffer", 1, nif_foreign_find_save_buffer, 0},
     {"nif_foreign_find_load_source", 1, nif_foreign_find_load_source,
      ERL_NIF_DIRTY_JOB_IO_BOUND}, // it might read bytes from source