diff --git a/lib/std/crypto/siphash.zig b/lib/std/crypto/siphash.zig
index a091b0644d..67bb2a329a 100644
--- a/lib/std/crypto/siphash.zig
+++ b/lib/std/crypto/siphash.zig
@@ -7,7 +7,7 @@
 // SipHash is a moderately fast pseudorandom function, returning a 64-bit or 128-bit tag for an arbitrary long input.
 //
 // Typical use cases include:
-// - protection against against DoS attacks for hash tables and bloom filters
+// - protection against DoS attacks for hash tables and bloom filters
 // - authentication of short-lived messages in online protocols
 //
 // https://www.aumasson.jp/siphash/siphash.pdf