diff --git a/src/helpers.rs b/src/helpers.rs
index 0549a1b..20a0906 100644
--- a/src/helpers.rs
+++ b/src/helpers.rs
@@ -7,15 +7,6 @@ pub const fn min(a: usize, b: usize) -> usize {
     }
 }
 
-#[cfg(feature = "nightly_features")]
-pub const fn sub_or_zero(a: usize, b: usize) -> usize {
-    if a > b {
-        a - b
-    } else {
-        0
-    }
-}
-
 #[cfg(feature = "nightly_features")]
 pub const fn ceiling_div(x: usize, d: usize) -> usize {
     x / d + (x % d != 0) as usize
diff --git a/src/lib.rs b/src/lib.rs
index db3dfbc..2f0df22 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -58,7 +58,7 @@ mod helpers;
 mod into;
 
 #[cfg(feature = "nightly_features")]
-use helpers::{ceiling_div, min, sub_or_zero};
+use helpers::{ceiling_div, min};
 
 pub use from::FromIteratorFixed;
 pub use into::IntoIteratorFixed;
@@ -164,7 +164,7 @@ where
     #[inline]
     pub fn skip<const SKIP: usize>(
         self,
-    ) -> IteratorFixed<impl Iterator<Item = I::Item>, { sub_or_zero(N, SKIP) }> {
+    ) -> IteratorFixed<impl Iterator<Item = I::Item>, { N.saturating_sub(SKIP) }> {
         IteratorFixed {
             inner: self.inner.skip(SKIP),
         }