diff --git a/src/fs.rs b/src/fs.rs
index a8bde04..11f726d 100644
--- a/src/fs.rs
+++ b/src/fs.rs
@@ -245,11 +245,12 @@ impl Filesystem for CorruptFs {
             let open_file = OpenFile { ino, flags };
             self.open_fds.insert(fh, OpenFd::File(open_file));
 
-            let mut o_flags = FOPEN_KEEP_CACHE;
-            if (flags & O_DIRECT) != 0 {
-                o_flags |= FOPEN_DIRECT_IO;
-            }
-
+            let o_flags =
+                if (flags & O_DIRECT) != 0 {
+                    FOPEN_DIRECT_IO
+                } else {
+                    FOPEN_KEEP_CACHE
+                };
             reply.opened(fh, o_flags);
         } else {
             reply.error(ENOENT);
@@ -296,11 +297,12 @@ impl Filesystem for CorruptFs {
             };
             self.open_fds.insert(fh, OpenFd::File(open_file));
 
-            let mut cr_flags = FOPEN_KEEP_CACHE;
-            if (flags & O_DIRECT) != 0 {
-                cr_flags |= FOPEN_DIRECT_IO;
-            }
-
+            let cr_flags =
+                if (flags & O_DIRECT) != 0 {
+                    FOPEN_DIRECT_IO
+                } else {
+                    FOPEN_KEEP_CACHE
+                };
             reply.created(&TTL, &attr, 0, fh, cr_flags);
         }
     }