diff --git a/core/iwasm/interpreter/wasm_interp_classic.c b/core/iwasm/interpreter/wasm_interp_classic.c
index d63b0a0e0..69037b59c 100644
--- a/core/iwasm/interpreter/wasm_interp_classic.c
+++ b/core/iwasm/interpreter/wasm_interp_classic.c
@@ -1176,12 +1176,15 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
     uint8 local_type, *global_addr;
     uint32 cache_index, type_index, param_cell_num, cell_num;
     uint8 value_type;
+#if !defined(OS_ENABLE_HW_BOUND_CHECK) \
+    || WASM_CPU_SUPPORTS_UNALIGNED_ADDR_ACCESS == 0
 #if WASM_CONFIGUABLE_BOUNDS_CHECKS != 0
     bool disable_bounds_checks = !wasm_runtime_is_bounds_checks_enabled(
         (WASMModuleInstanceCommon *)module);
 #else
     bool disable_bounds_checks = false;
 #endif
+#endif
 
 #if WASM_ENABLE_DEBUG_INTERP != 0
     uint8 *frame_ip_orig = NULL;
diff --git a/core/iwasm/interpreter/wasm_interp_fast.c b/core/iwasm/interpreter/wasm_interp_fast.c
index 0852ab2f3..40a7d38c8 100644
--- a/core/iwasm/interpreter/wasm_interp_fast.c
+++ b/core/iwasm/interpreter/wasm_interp_fast.c
@@ -1200,12 +1200,15 @@ wasm_interp_call_func_bytecode(WASMModuleInstance *module,
     uint8 *maddr = NULL;
     uint32 local_idx, local_offset, global_idx;
     uint8 opcode, local_type, *global_addr;
+#if !defined(OS_ENABLE_HW_BOUND_CHECK) \
+    || WASM_CPU_SUPPORTS_UNALIGNED_ADDR_ACCESS == 0
 #if WASM_CONFIGUABLE_BOUNDS_CHECKS != 0
     bool disable_bounds_checks = !wasm_runtime_is_bounds_checks_enabled(
         (WASMModuleInstanceCommon *)module);
 #else
     bool disable_bounds_checks = false;
 #endif
+#endif
 
 #if WASM_ENABLE_LABELS_AS_VALUES != 0
 #define HANDLE_OPCODE(op) &&HANDLE_##op