diff --git a/examples/benchmarks/Deriv.roc b/examples/benchmarks/Deriv.roc
index 90e641cb0f..46ae9c73f7 100644
--- a/examples/benchmarks/Deriv.roc
+++ b/examples/benchmarks/Deriv.roc
@@ -41,7 +41,7 @@ Expr : [ Val I64, Var Str, Add Expr Expr, Mul Expr Expr, Pow Expr Expr, Ln Expr
 
 divmod : I64, I64 -> Result { div : I64, mod : I64 } [ DivByZero ]*
 divmod = \l, r ->
-    when Pair (Num.divFloorChecked l r) (Num.remChecked l r) is
+    when Pair (Num.divTruncChecked l r) (Num.remChecked l r) is
         Pair div (Ok mod) ->
             Ok { div, mod }