diff --git a/include/map.h b/include/map.h
index 847b455..13a3545 100644
--- a/include/map.h
+++ b/include/map.h
@@ -37,6 +37,7 @@ int map_advise_rand(mmap_t* restrict ptr, int need);
 typedef void* (*map_cb)(mmap_t map, void* user);
 void* map_and_then(const char* file, map_cb callback, void* user);
 void* map_fd_and_then(int fd, map_cb callback, void* user);
+int unmap_and_close_s(mmap_t map, int flags);
 
 #ifdef __cplusplus
 }
diff --git a/src/map.c b/src/map.c
index f74f004..34638a4 100644
--- a/src/map.c
+++ b/src/map.c
@@ -113,6 +113,7 @@ int open_and_alloc(const char* file, mmap_t* restrict ptr, size_t sz)
 	return 1;
 }
 
+
 inline
 int unmap_and_close_s(mmap_t map, int flags)
 {