diff --git a/promisor-remote.h b/promisor-remote.h
index 8200dfc940..c60aaa5cce 100644
--- a/promisor-remote.h
+++ b/promisor-remote.h
@@ -15,17 +15,17 @@ struct promisor_remote {
 	const char name[FLEX_ARRAY];
 };
 
-extern void promisor_remote_reinit(void);
-extern struct promisor_remote *promisor_remote_find(const char *remote_name);
-extern int has_promisor_remote(void);
-extern int promisor_remote_get_direct(struct repository *repo,
-				      const struct object_id *oids,
-				      int oid_nr);
+void promisor_remote_reinit(void);
+struct promisor_remote *promisor_remote_find(const char *remote_name);
+int has_promisor_remote(void);
+int promisor_remote_get_direct(struct repository *repo,
+			       const struct object_id *oids,
+			       int oid_nr);
 
 /*
  * This should be used only once from setup.c to set the value we got
  * from the extensions.partialclone config option.
  */
-extern void set_repository_format_partial_clone(char *partial_clone);
+void set_repository_format_partial_clone(char *partial_clone);
 
 #endif /* PROMISOR_REMOTE_H */