diff --git a/aya/src/maps/mod.rs b/aya/src/maps/mod.rs
index b7eafb6d1..f6ca852b2 100644
--- a/aya/src/maps/mod.rs
+++ b/aya/src/maps/mod.rs
@@ -637,9 +637,10 @@ impl Clone for MapData {
             obj: self.obj.clone(),
             fd: {
                 if let Some(fd) = self.fd {
-                    unsafe { Some(libc::dup(fd)) };
+                    unsafe { Some(libc::dup(fd)) }
+                } else {
+                    None
                 }
-                None
             },
             btf_fd: self.btf_fd,
             pinned: self.pinned,