diff --git a/hash/siphash.cpp b/hash/siphash.cpp
index f2541eb4..a45b6663 100644
--- a/hash/siphash.cpp
+++ b/hash/siphash.cpp
@@ -31,10 +31,10 @@ round (uint64_t v[4])
 {
     using cruft::rotatel;
 
-    v[0] += v[1];              v[2] += v[3];
-    v[1] = rotatel (v[1], 13); v[3] = rotatel (v[3], 16);
-    v[1] ^= v[0];              v[3] ^= v[2];
-    v[0] = rotatel (v[0], 32);
+    v[0] += v[1];               v[2] += v[3];
+    v[1]  = rotatel (v[1], 13); v[3] = rotatel (v[3], 16);
+    v[1] ^= v[0];               v[3] ^= v[2];
+    v[0]  = rotatel (v[0], 32);
 
     v[2] += v[1];               v[0] += v[3];
     v[1]  = rotatel (v[1], 17); v[3] = rotatel (v[3], 21);