diff --git a/hercules_samples/matmul/src/main.rs b/hercules_samples/matmul/src/main.rs
index 29415b511992946b08a1496f3eb92d957615d8aa..277276648e905186bfeb54714fb00f7275f17b22 100644
--- a/hercules_samples/matmul/src/main.rs
+++ b/hercules_samples/matmul/src/main.rs
@@ -12,9 +12,9 @@ fn main() {
         const I: usize = 256;
         const J: usize = 64;
         const K: usize = 128;
-        let a: Box<[f32]> = (0..I * J).map(|_| random::<f32>()).collect();
-        let b: Box<[f32]> = (0..J * K).map(|_| random::<f32>()).collect();
-        let mut correct_c: Box<[f32]> = (0..I * K).map(|_| 0.0).collect();
+        let a: Box<[i32]> = (0..I * J).map(|_| random::<i32>() % 100).collect();
+        let b: Box<[i32]> = (0..J * K).map(|_| random::<i32>() % 100).collect();
+        let mut correct_c: Box<[i32]> = (0..I * K).map(|_| 0).collect();
         for i in 0..I {
             for k in 0..K {
                 for j in 0..J {
@@ -25,10 +25,8 @@ fn main() {
         let a = HerculesImmBox::from(a.as_ref());
         let b = HerculesImmBox::from(b.as_ref());
         let mut r = runner!(matmul);
-        let mut c = HerculesMutBox::from(r.run(I as u64, J as u64, K as u64, a.to(), b.to()).await);
-        for (calc, correct) in zip(c.as_slice().into_iter().map(|x: &mut f32| *x), correct_c) {
-            assert!((calc - correct).abs() < 0.0001, "{} != {}", calc, correct);
-        }
+        let mut c: HerculesMutBox<i32> = HerculesMutBox::from(r.run(I as u64, J as u64, K as u64, a.to(), b.to()).await);
+        assert_eq!(c.as_slice(), correct_c.as_ref());
     });
 }