diff --git a/hashes/src/ripemd160/crypto.rs b/hashes/src/ripemd160/crypto.rs
index 70e92f66d..b7b733a8e 100644
--- a/hashes/src/ripemd160/crypto.rs
+++ b/hashes/src/ripemd160/crypto.rs
@@ -229,7 +229,7 @@ impl HashEngine {
             round5: h_ordering 2, 3, 4, 0, 1; data_index 15; roll_shift  5;
             round5: h_ordering 1, 2, 3, 4, 0; data_index 13; roll_shift  6;
 
-            // Porallel Round 1;
+            // Parallel Round 1;
             par_round1: h_ordering 0, 1, 2, 3, 4; data_index  5; roll_shift  8;
             par_round1: h_ordering 4, 0, 1, 2, 3; data_index 14; roll_shift  9;
             par_round1: h_ordering 3, 4, 0, 1, 2; data_index  7; roll_shift  9;