diff --git a/contrib/ethereum/libethash/progpow.cpp b/contrib/ethereum/libethash/progpow.cpp
index a7b85c0e..d74c8747 100644
--- a/contrib/ethereum/libethash/progpow.cpp
+++ b/contrib/ethereum/libethash/progpow.cpp
@@ -116,27 +116,27 @@ inline uint32_t random_math(uint32_t a, uint32_t b, uint32_t selector) noexcept
     switch (selector % 11)
     {
     default:
-    case 0:
-        return a * b;
-    case 1:
-      return a + b;
     case 2:
-        return mul_hi32(a, b);
+      return a + b;
     case 3:
-        return std::min(a, b);
+      return a * b;
     case 4:
-        return rotl32(a, b);
+        return mul_hi32(a, b);
     case 5:
-        return rotr32(a, b);
+        return std::min(a, b);
     case 6:
-        return a & b;
+        return rotl32(a, b);
     case 7:
-        return a | b;
+        return rotr32(a, b);
     case 8:
-        return a ^ b;
+        return a & b;
     case 9:
-        return clz32(a) + clz32(b);
+        return a | b;
     case 10:
+        return a ^ b;
+    case 0:
+        return clz32(a) + clz32(b);
+    case 1:
         return popcount32(a) + popcount32(b);
     }
 }