diff --git a/src/fs_fadvise.hpp b/src/fs_fadvise.hpp
index c89cd14e..28459d43 100644
--- a/src/fs_fadvise.hpp
+++ b/src/fs_fadvise.hpp
@@ -22,7 +22,7 @@
 #endif
 
 #ifndef POSIX_FADV_RANDOM
-# define POSIX_FADV_NORMAL 1
+# define POSIX_FADV_RANDOM 1
 #endif
 
 #ifndef POSIX_FADV_SEQUENTIAL