diff --git a/source3/modules/vfs_prealloc.c b/source3/modules/vfs_prealloc.c
index 3293b4ec8e0..15be7d121bc 100644
--- a/source3/modules/vfs_prealloc.c
+++ b/source3/modules/vfs_prealloc.c
@@ -122,7 +122,7 @@ static int prealloc_open(vfs_handle_struct* handle,
 			mode_t		    mode)
 {
 	int fd;
-	off64_t size = 0;
+	off_t size = 0;
 
 	const char * dot;
 	char fext[10];
diff --git a/source3/modules/vfs_readahead.c b/source3/modules/vfs_readahead.c
index 8e6fd43aae8..b48d95faa96 100644
--- a/source3/modules/vfs_readahead.c
+++ b/source3/modules/vfs_readahead.c
@@ -20,7 +20,7 @@
 #include "smbd/smbd.h"
 
 #if defined(HAVE_LINUX_READAHEAD) && ! defined(HAVE_READAHEAD_DECL)
-ssize_t readahead(int fd, off64_t offset, size_t count);
+ssize_t readahead(int fd, off_t offset, size_t count);
 #endif
 
 struct readahead_data {