diff --git a/src/crypto/CryptoNight.cpp b/src/crypto/CryptoNight.cpp
index 78131548..67e7ac5c 100644
--- a/src/crypto/CryptoNight.cpp
+++ b/src/crypto/CryptoNight.cpp
@@ -71,11 +71,15 @@ static void cryptonight_aesni(AsmOptimization asmOptimization, PowVariant powVer
         }
 #endif
 } else if (powVersion == PowVariant::POW_MSR) {
+#if defined(XMRIG_ARM)
+        CryptoNightMultiHash<0x40000, POW_DEFAULT_INDEX_SHIFT, MEMORY, 0x1FFFF0, false, NUM_HASH_BLOCKS>::hashPowV2(input, size, output, scratchPad);
+#else
         if (asmOptimization == AsmOptimization::ASM_INTEL && NUM_HASH_BLOCKS == 1) {
             CryptoNightMultiHash<0x40000, POW_DEFAULT_INDEX_SHIFT, MEMORY, 0x1FFFF0, false, NUM_HASH_BLOCKS>::hashPowV2_asm(input, size, output, scratchPad, asmOptimization);
         } else {
             CryptoNightMultiHash<0x40000, POW_DEFAULT_INDEX_SHIFT, MEMORY, 0x1FFFF0, false, NUM_HASH_BLOCKS>::hashPowV2(input, size, output, scratchPad);
         }
+#endif
 } else if (powVersion == PowVariant::POW_RTO) {
     CryptoNightMultiHash<0x80000, POW_DEFAULT_INDEX_SHIFT, MEMORY, 0x1FFFF0, false, NUM_HASH_BLOCKS>::hashLiteTube(input, size, output, scratchPad);
 } else if (powVersion == PowVariant::POW_XFH) {
@@ -121,11 +125,15 @@ static void cryptonight_softaes(AsmOptimization asmOptimization, PowVariant powV
         }
 #endif
     } else if (powVersion == PowVariant::POW_MSR) {
+#if defined(XMRIG_ARM)
+        CryptoNightMultiHash<0x40000, POW_DEFAULT_INDEX_SHIFT, MEMORY, 0x1FFFF0, true, NUM_HASH_BLOCKS>::hashPowV2(input, size, output, scratchPad);
+#else
         if (asmOptimization == AsmOptimization::ASM_INTEL && NUM_HASH_BLOCKS == 1) {
             CryptoNightMultiHash<0x40000, POW_DEFAULT_INDEX_SHIFT, MEMORY, 0x1FFFF0, true, NUM_HASH_BLOCKS>::hashPowV2_asm(input, size, output, scratchPad, asmOptimization);
         } else {
             CryptoNightMultiHash<0x40000, POW_DEFAULT_INDEX_SHIFT, MEMORY, 0x1FFFF0, true, NUM_HASH_BLOCKS>::hashPowV2(input, size, output, scratchPad);
         }
+#endif
     } else if (powVersion == PowVariant::POW_RTO) {
         CryptoNightMultiHash<0x80000, POW_DEFAULT_INDEX_SHIFT, MEMORY, 0x1FFFF0, true, NUM_HASH_BLOCKS>::hashLiteTube(input, size, output, scratchPad);
     } else if (powVersion == PowVariant::POW_XFH) {