--- a/cipher/keccak.c
+++ b/cipher/keccak.c
@@ -1207,10 +1207,12 @@
   else if (features & HWF_INTEL_BMI2)
     ctx->ops = &keccak_bmi2_32bi_ops;
 #endif
+#ifdef HAVE_CPU_ARCH_X86
 #ifdef USE_64BIT_SHLD
   else if (features & HWF_INTEL_FAST_SHLD)
     ctx->ops = &keccak_shld_64_ops;
 #endif
+#endif
 #ifdef USE_RISCV_ZBB
   else if ((features & HWF_RISCV_IMAFDC) && (features & HWF_RISCV_ZBB))
     ctx->ops = &keccak_riscv_zbb_64_ops;