diff --git a/lib/common/cpu.h b/lib/common/cpu.h
index 88e0ebf4..eeb428ad 100644
--- a/lib/common/cpu.h
+++ b/lib/common/cpu.h
@@ -36,7 +36,7 @@ MEM_STATIC ZSTD_cpuid_t ZSTD_cpuid(void) {
     U32 f1d = 0;
     U32 f7b = 0;
     U32 f7c = 0;
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && (defined(_M_X64) || defined(_M_IX86))
     int reg[4];
     __cpuid((int*)reg, 0);
     {