diff --git a/src/proto/blob.pro b/src/proto/blob.pro
index 5d80463..dbc8d14 100644
--- a/src/proto/blob.pro
+++ b/src/proto/blob.pro
@@ -19,4 +19,6 @@
 int check_blob_range(long bloblen, varnumber_T n1, varnumber_T n2, int quiet);
 int blob_set_range(blob_T *dest, long n1, long n2, typval_T *src);
 void blob_remove(typval_T *argvars, typval_T *rettv, char_u *arg_errmsg);
+void f_blob2list(typval_T *argvars, typval_T *rettv);
+void f_list2blob(typval_T *argvars, typval_T *rettv);
 /* vim: set ft=c : */
diff --git a/src/proto/typval.pro b/src/proto/typval.pro
index e509e4d..d13a1ec 100644
--- a/src/proto/typval.pro
+++ b/src/proto/typval.pro
@@ -17,6 +17,7 @@
 int check_for_float_or_nr_arg(typval_T *args, int idx);
 int check_for_bool_arg(typval_T *args, int idx);
 int check_for_opt_bool_arg(typval_T *args, int idx);
+int check_for_blob_arg(typval_T *args, int idx);
 int check_for_list_arg(typval_T *args, int idx);
 int check_for_opt_list_arg(typval_T *args, int idx);
 int check_for_dict_arg(typval_T *args, int idx);