diff --git a/src/crypto/sha256.cpp b/src/crypto/sha256.cpp
index 2bf624042c..c438de9745 100644
--- a/src/crypto/sha256.cpp
+++ b/src/crypto/sha256.cpp
@@ -530,7 +530,7 @@ bool SelfTest() {
 }
 
 
-#if defined(USE_ASM) && (defined(__x86_64__) || defined(__amd64__))
+#if defined(USE_ASM) && (defined(__x86_64__) || defined(__amd64__) || defined(__i386__))
 // We can't use cpuid.h's __get_cpuid as it does not support subleafs.
 void inline cpuid(uint32_t leaf, uint32_t subleaf, uint32_t& a, uint32_t& b, uint32_t& c, uint32_t& d)
 {
@@ -551,13 +551,15 @@ bool AVXEnabled()
 std::string SHA256AutoDetect()
 {
     std::string ret = "standard";
-#if defined(USE_ASM) && (defined(__x86_64__) || defined(__amd64__))
+#if defined(USE_ASM) && (defined(__x86_64__) || defined(__amd64__) || defined(__i386__))
     (void)AVXEnabled; // Silence unused warning (in case ENABLE_AVX2 is not defined)
     uint32_t eax, ebx, ecx, edx;
     cpuid(1, 0, eax, ebx, ecx, edx);
     if ((ecx >> 19) & 1) {
+#if defined(__x86_64__) || defined(__amd64__)
         Transform = sha256_sse4::Transform;
         TransformD64 = TransformD64Wrapper<sha256_sse4::Transform>;
+#endif
 #if defined(ENABLE_SSE41) && !defined(BUILD_BITCOIN_INTERNAL)
         TransformD64_4way = sha256d64_sse41::Transform_4way;
         ret = "sse4(1way+4way)";