diff --git a/src/aarch64.rs b/src/aarch64.rs
index 0a330a2..41c5b4f 100644
--- a/src/aarch64.rs
+++ b/src/aarch64.rs
@@ -5,6 +5,7 @@
 //! AArch64.
 
 use crate::QEMUExit;
+use core::arch::asm;
 
 const EXIT_SUCCESS: u32 = 0;
 const EXIT_FAILURE: u32 = 1;
diff --git a/src/riscv64.rs b/src/riscv64.rs
index 34e6886..2dfae97 100644
--- a/src/riscv64.rs
+++ b/src/riscv64.rs
@@ -5,6 +5,7 @@
 //! RISCV64.
 
 use crate::QEMUExit;
+use core::arch::asm;
 
 const EXIT_SUCCESS: u32 = 0x5555; // Equals `exit(0)`.
 
diff --git a/src/x86.rs b/src/x86.rs
index ac65b52..0946b60 100644
--- a/src/x86.rs
+++ b/src/x86.rs
@@ -5,6 +5,7 @@
 //! x86.
 
 use crate::QEMUExit;
+use core::arch::asm;
 
 const EXIT_FAILURE: u32 = 0; // since ((0 << 1) | 1) = 1.
 
diff --git a/tests/aarch64_raspi3/mod.rs b/tests/aarch64_raspi3/mod.rs
index 5f1f0bb..c80cb47 100644
--- a/tests/aarch64_raspi3/mod.rs
+++ b/tests/aarch64_raspi3/mod.rs
@@ -4,6 +4,8 @@
 
 //! AArch64 specific setup code.
 
+use core::arch::asm;
+
 #[no_mangle]
 unsafe fn _start() -> ! {
     asm!("mov sp, #0x80000");
diff --git a/tests/riscv64_virt/mod.rs b/tests/riscv64_virt/mod.rs
index 32740a2..1945da6 100644
--- a/tests/riscv64_virt/mod.rs
+++ b/tests/riscv64_virt/mod.rs
@@ -4,6 +4,8 @@
 
 //! RISCV64 specific setup code.
 
+use core::arch::asm;
+
 #[no_mangle]
 unsafe fn _start() -> ! {
     asm!("la sp, _stack");