diff --git a/vmm/src/acpi.rs b/vmm/src/acpi.rs
index 2e45aaa5e..a8379a435 100644
--- a/vmm/src/acpi.rs
+++ b/vmm/src/acpi.rs
@@ -236,7 +236,7 @@ fn create_facp_table(dsdt_offset: GuestAddress, device_manager: &Arc<Mutex<Devic
 
     // Architecture common fields
     // HW_REDUCED_ACPI, RESET_REG_SUP, TMR_VAL_EXT
-    let fadt_flags: u32 = 1 << 20 | 1 << 10 | 1 << 8;
+    let fadt_flags: u32 = (1 << 20) | (1 << 10) | (1 << 8);
     facp.write(112, fadt_flags);
     // FADT minor version
     facp.write(131, 3u8);
diff --git a/vmm/src/cpu.rs b/vmm/src/cpu.rs
index 19c90190d..828caa54f 100644
--- a/vmm/src/cpu.rs
+++ b/vmm/src/cpu.rs
@@ -1435,7 +1435,7 @@ impl CpuManager {
                         1 << MADT_CPU_ENABLE_FLAG
                     } else {
                         0
-                    } | 1 << MADT_CPU_ONLINE_CAPABLE_FLAG,
+                    } | (1 << MADT_CPU_ONLINE_CAPABLE_FLAG),
                     _reserved: 0,
                 };
                 madt.append(lapic);