diff --git a/plugins/sudoers/defaults.c b/plugins/sudoers/defaults.c
index e746d26ba..6d6232ab2 100644
--- a/plugins/sudoers/defaults.c
+++ b/plugins/sudoers/defaults.c
@@ -349,7 +349,7 @@ parse_default_entry(struct sudo_defs_types *def, const char *val, int op,
     debug_return_bool(rc == true);
 }
 
-struct early_default *
+static struct early_default *
 is_early_default(const char *name)
 {
     struct early_default *early;
@@ -400,7 +400,7 @@ set_default(const char *var, const char *val, int op, const char *file,
  * Like set_default() but stores the matching default value
  * and does not run callbacks.
  */
-bool
+static bool
 set_early_default(const char *var, const char *val, int op, const char *file,
     int line, int column, bool quiet, struct early_default *early)
 {
@@ -422,7 +422,7 @@ set_early_default(const char *var, const char *val, int op, const char *file,
 /*
  * Run callbacks for early defaults.
  */
-bool
+static bool
 run_early_defaults(void)
 {
     struct early_default *early;
diff --git a/plugins/sudoers/defaults.h b/plugins/sudoers/defaults.h
index 0e40f583a..d8971c4c6 100644
--- a/plugins/sudoers/defaults.h
+++ b/plugins/sudoers/defaults.h
@@ -133,9 +133,6 @@ struct defaults_list;
 struct sudoers_parse_tree;
 void dump_default(void);
 bool init_defaults(void);
-struct early_default *is_early_default(const char *name);
-bool run_early_defaults(void);
-bool set_early_default(const char *var, const char *val, int op, const char *file, int line, int column, bool quiet, struct early_default *early);
 bool set_default(const char *var, const char *val, int op, const char *file, int line, int column, bool quiet);
 bool update_defaults(struct sudoers_parse_tree *parse_tree, struct defaults_list *defs, int what, bool quiet);
 bool check_defaults(struct sudoers_parse_tree *parse_tree, bool quiet);