diff --git a/stdlib/public/core/Span/Span.swift b/stdlib/public/core/Span/Span.swift
index f4e84c9389455..fd930aea00706 100644
--- a/stdlib/public/core/Span/Span.swift
+++ b/stdlib/public/core/Span/Span.swift
@@ -292,7 +292,7 @@ extension Span where Element: BitwiseCopyable {
   ///
   /// - Parameters:
   ///   - pointer: a pointer to the first initialized element.
-  ///   - byteCount: the number of initialized elements in the span.
+  ///   - byteCount: the number of bytes in the span.
   @_alwaysEmitIntoClient
   @lifetime(borrow pointer)
   @unsafe