diff --git a/rust/src/download_provider.rs b/rust/src/download_provider.rs
index 9fd803a7de..d6fa0ccf99 100644
--- a/rust/src/download_provider.rs
+++ b/rust/src/download_provider.rs
@@ -253,6 +253,7 @@ impl DownloadInstance {
             )
         };
 
+        unsafe { drop(Box::from_raw(callbacks)) };
         if result < 0 {
             unsafe { BNFreeDownloadInstanceResponse(response) };
             return Err(self.get_error());