diff --git a/source3/modules/vfs_full_audit.c b/source3/modules/vfs_full_audit.c
index ebe89ec..ac7f7a3 100644
--- a/source3/modules/vfs_full_audit.c
+++ b/source3/modules/vfs_full_audit.c
@@ -158,7 +158,7 @@ static int smb_full_audit_fstat(vfs_handle_struct *handle, files_struct *fsp,
 		       SMB_STRUCT_STAT *sbuf);
 static int smb_full_audit_lstat(vfs_handle_struct *handle,
 		       const char *path, SMB_STRUCT_STAT *sbuf);
-static int smb_full_audit_get_alloc_size(vfs_handle_struct *handle,
+static uint64_t smb_full_audit_get_alloc_size(vfs_handle_struct *handle,
 		       files_struct *fsp, const SMB_STRUCT_STAT *sbuf);
 static int smb_full_audit_unlink(vfs_handle_struct *handle,
 			const char *path);
@@ -1396,14 +1396,14 @@ static int smb_full_audit_lstat(vfs_handle_struct *handle,
 	return result;    
 }
 
-static int smb_full_audit_get_alloc_size(vfs_handle_struct *handle,
+static uint64_t smb_full_audit_get_alloc_size(vfs_handle_struct *handle,
 		       files_struct *fsp, const SMB_STRUCT_STAT *sbuf)
 {
-	int result;
+	uint64_t result;
 
 	result = SMB_VFS_NEXT_GET_ALLOC_SIZE(handle, fsp, sbuf);
 
-	do_log(SMB_VFS_OP_GET_ALLOC_SIZE, (result >= 0), handle, "%d", result);
+	do_log(SMB_VFS_OP_GET_ALLOC_SIZE, (result != (uint64_t)-1), handle, "%llu", result);
 
 	return result;
 }