diff --git a/src/lib.rs b/src/lib.rs
index bdd162b..b3c7b85 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1193,7 +1193,7 @@ pub extern "C" fn proxmox_import_state(buf: *const u8, buf_size: usize) {
 pub extern "C" fn proxmox_free_state_buf(buf: *mut u8) {
     if !buf.is_null() {
         unsafe {
-            Box::from_raw(buf);
+            drop(Box::from_raw(buf));
         }
     }
 }