diff --git a/pkg/sentry/platform/ptrace/subprocess.go b/pkg/sentry/platform/ptrace/subprocess.go
index ddb1f41e3..821f6848d 100644
--- a/pkg/sentry/platform/ptrace/subprocess.go
+++ b/pkg/sentry/platform/ptrace/subprocess.go
@@ -21,6 +21,7 @@ import (
 	"sync"
 	"syscall"
 
+	"golang.org/x/sys/unix"
 	"gvisor.dev/gvisor/pkg/log"
 	"gvisor.dev/gvisor/pkg/procid"
 	"gvisor.dev/gvisor/pkg/sentry/arch"
@@ -541,14 +542,14 @@ func (s *subprocess) switchToApp(c *context, ac arch.Context) bool {
 		if isSingleStepping(regs) {
 			if _, _, errno := syscall.RawSyscall6(
 				syscall.SYS_PTRACE,
-				syscall.PTRACE_SYSEMU_SINGLESTEP,
+				unix.PTRACE_SYSEMU_SINGLESTEP,
 				uintptr(t.tid), 0, 0, 0, 0); errno != 0 {
 				panic(fmt.Sprintf("ptrace sysemu failed: %v", errno))
 			}
 		} else {
 			if _, _, errno := syscall.RawSyscall6(
 				syscall.SYS_PTRACE,
-				syscall.PTRACE_SYSEMU,
+				unix.PTRACE_SYSEMU,
 				uintptr(t.tid), 0, 0, 0, 0); errno != 0 {
 				panic(fmt.Sprintf("ptrace sysemu failed: %v", errno))
 			}
diff --git a/pkg/sentry/platform/ptrace/subprocess_linux.go b/pkg/sentry/platform/ptrace/subprocess_linux.go
index cf13ea5e4..74968dfdf 100644
--- a/pkg/sentry/platform/ptrace/subprocess_linux.go
+++ b/pkg/sentry/platform/ptrace/subprocess_linux.go
@@ -54,7 +54,7 @@ func probeSeccomp() bool {
 
 	for {
 		// Attempt an emulation.
-		if _, _, errno := syscall.RawSyscall6(syscall.SYS_PTRACE, syscall.PTRACE_SYSEMU, uintptr(t.tid), 0, 0, 0, 0); errno != 0 {
+		if _, _, errno := syscall.RawSyscall6(syscall.SYS_PTRACE, unix.PTRACE_SYSEMU, uintptr(t.tid), 0, 0, 0, 0); errno != 0 {
 			panic(fmt.Sprintf("ptrace syscall-enter failed: %v", errno))
 		}