diff --git a/proxmox/src/tools/fd.rs b/proxmox/src/tools/fd.rs
index 91d955d1..ff6163c9 100644
--- a/proxmox/src/tools/fd.rs
+++ b/proxmox/src/tools/fd.rs
@@ -75,7 +75,7 @@ impl AsRawFd for RawFdNum {
 }
 
 impl FromRawFd for RawFdNum {
-    fn from_raw_fd(fd: RawFd) -> Self {
+    unsafe fn from_raw_fd(fd: RawFd) -> Self {
         Self(fd)
     }
 }