diff --git a/crates/bencher_compat/src/compat.rs b/crates/bencher_compat/src/compat.rs
index 76a76033..35147788 100644
--- a/crates/bencher_compat/src/compat.rs
+++ b/crates/bencher_compat/src/compat.rs
@@ -38,8 +38,9 @@ impl Bencher {
             black_box(inner());
         }
         self.codspeed.start_benchmark(uri.as_str());
-        black_box(inner());
+        let output = inner();
         self.codspeed.end_benchmark();
+        black_box(output);
     }
 }
 
diff --git a/crates/criterion_compat/src/compat/bencher.rs b/crates/criterion_compat/src/compat/bencher.rs
index 6eaaab0d..c50af643 100644
--- a/crates/criterion_compat/src/compat/bencher.rs
+++ b/crates/criterion_compat/src/compat/bencher.rs
@@ -67,11 +67,11 @@ impl<'a> Bencher<'a> {
         for i in 0..codspeed::codspeed::WARMUP_RUNS + 1 {
             let input = black_box(setup());
             let output = if i < codspeed::codspeed::WARMUP_RUNS {
-                black_box(routine(input))
+                routine(input)
             } else {
                 let input = black_box(setup());
                 codspeed.start_benchmark(self.uri.as_str());
-                let output = black_box(routine(input));
+                let output = routine(input);
                 codspeed.end_benchmark();
                 output
             };
@@ -219,10 +219,10 @@ impl<'a, 'b, A: AsyncExecutor> AsyncBencher<'a, 'b, A> {
             for i in 0..codspeed::codspeed::WARMUP_RUNS + 1 {
                 let input = black_box(setup());
                 let output = if i < codspeed::codspeed::WARMUP_RUNS {
-                    black_box(routine(input).await)
+                    routine(input).await
                 } else {
                     codspeed.start_benchmark(b.uri.as_str());
-                    let output = black_box(routine(input).await);
+                    let output = routine(input).await;
                     codspeed.end_benchmark();
                     output
                 };
diff --git a/crates/divan_compat/src/compat/bench/mod.rs b/crates/divan_compat/src/compat/bench/mod.rs
index 48910ed1..5ffd3fd3 100644
--- a/crates/divan_compat/src/compat/bench/mod.rs
+++ b/crates/divan_compat/src/compat/bench/mod.rs
@@ -97,8 +97,9 @@ where
         let mut gen_input = self.config.gen_input.borrow_mut();
         let input = gen_input();
         codspeed.start_benchmark(self.uri.as_str());
-        divan::black_box(benched(input));
+        let output = benched(input);
         codspeed.end_benchmark();
+        divan::black_box(output);
     }
 
     pub fn bench_local_refs<O, B>(self, mut benched: B)
@@ -110,7 +111,8 @@ where
         let mut input = gen_input();
 
         codspeed.start_benchmark(self.uri.as_str());
-        divan::black_box(benched(&mut input));
+        let output = benched(&mut input);
         codspeed.end_benchmark();
+        divan::black_box(output);
     }
 }