diff --git a/src/service/sending.rs b/src/service/sending.rs
index 803c9c1c..d940f16b 100644
--- a/src/service/sending.rs
+++ b/src/service/sending.rs
@@ -576,12 +576,17 @@ impl Service {
     ) -> Result<()> {
         let destination = Destination::Push(user.to_owned(), pushkey);
         let event_type = SendingEventType::Pdu(pdu_id.to_owned());
-        let keys = self.db.queue_requests(&[(&destination, &event_type)])?;
+        let key = self
+            .db
+            .queue_requests(&[(&destination, &event_type)])?
+            .into_iter()
+            .next()
+            .unwrap();
         self.sender
             .send(RequestData {
                 destination,
                 event_type,
-                key: keys.into_iter().next().unwrap(),
+                key,
                 requester_span: Span::current(),
             })
             .unwrap();
@@ -630,12 +635,17 @@ impl Service {
     ) -> Result<()> {
         let destination = Destination::Normal(server.to_owned());
         let event_type = SendingEventType::Edu(serialized);
-        let keys = self.db.queue_requests(&[(&destination, &event_type)])?;
+        let key = self
+            .db
+            .queue_requests(&[(&destination, &event_type)])?
+            .into_iter()
+            .next()
+            .unwrap();
         self.sender
             .send(RequestData {
                 destination,
                 event_type,
-                key: keys.into_iter().next().unwrap(),
+                key,
                 requester_span: Span::current(),
             })
             .unwrap();
@@ -651,12 +661,17 @@ impl Service {
     ) -> Result<()> {
         let destination = Destination::Appservice(appservice_id);
         let event_type = SendingEventType::Pdu(pdu_id);
-        let keys = self.db.queue_requests(&[(&destination, &event_type)])?;
+        let key = self
+            .db
+            .queue_requests(&[(&destination, &event_type)])?
+            .into_iter()
+            .next()
+            .unwrap();
         self.sender
             .send(RequestData {
                 destination,
                 event_type,
-                key: keys.into_iter().next().unwrap(),
+                key,
                 requester_span: Span::current(),
             })
             .unwrap();