diff --git a/src/internal/syscall/unix/getrandom.go b/src/internal/syscall/unix/getrandom.go
index a6659331e46..e83f0cd6f95 100644
--- a/src/internal/syscall/unix/getrandom.go
+++ b/src/internal/syscall/unix/getrandom.go
@@ -12,7 +12,7 @@ import (
 	"unsafe"
 )
 
-var getrandomUnsupported int32 // atomic
+var getrandomUnsupported atomic.Bool
 
 // GetRandomFlag is a flag supported by the getrandom system call.
 type GetRandomFlag uintptr
@@ -22,7 +22,7 @@ func GetRandom(p []byte, flags GetRandomFlag) (n int, err error) {
 	if len(p) == 0 {
 		return 0, nil
 	}
-	if atomic.LoadInt32(&getrandomUnsupported) != 0 {
+	if getrandomUnsupported.Load() {
 		return 0, syscall.ENOSYS
 	}
 	r1, _, errno := syscall.Syscall(getrandomTrap,
@@ -31,7 +31,7 @@ func GetRandom(p []byte, flags GetRandomFlag) (n int, err error) {
 		uintptr(flags))
 	if errno != 0 {
 		if errno == syscall.ENOSYS {
-			atomic.StoreInt32(&getrandomUnsupported, 1)
+			getrandomUnsupported.Store(true)
 		}
 		return 0, errno
 	}
diff --git a/src/internal/syscall/unix/getrandom_netbsd.go b/src/internal/syscall/unix/getrandom_netbsd.go
index 724228b380f..c83e3b21a5e 100644
--- a/src/internal/syscall/unix/getrandom_netbsd.go
+++ b/src/internal/syscall/unix/getrandom_netbsd.go
@@ -14,7 +14,7 @@ import (
 // NetBSD getrandom system call number.
 const getrandomTrap uintptr = 91
 
-var getrandomUnsupported int32 // atomic
+var getrandomUnsupported atomic.Bool
 
 // GetRandomFlag is a flag supported by the getrandom system call.
 type GetRandomFlag uintptr
@@ -24,12 +24,12 @@ func GetRandom(p []byte, flags GetRandomFlag) (n int, err error) {
 	if len(p) == 0 {
 		return 0, nil
 	}
-	if atomic.LoadInt32(&getrandomUnsupported) != 0 {
+	if getrandomUnsupported.Load() {
 		return 0, syscall.ENOSYS
 	}
 	// getrandom(2) was added in NetBSD 10.0
 	if getOSRevision() < 1000000000 {
-		atomic.StoreInt32(&getrandomUnsupported, 1)
+		getrandomUnsupported.Store(true)
 		return 0, syscall.ENOSYS
 	}
 	r1, _, errno := syscall.Syscall(getrandomTrap,
@@ -38,7 +38,7 @@ func GetRandom(p []byte, flags GetRandomFlag) (n int, err error) {
 		uintptr(flags))
 	if errno != 0 {
 		if errno == syscall.ENOSYS {
-			atomic.StoreInt32(&getrandomUnsupported, 1)
+			getrandomUnsupported.Store(true)
 		}
 		return 0, errno
 	}
diff --git a/src/internal/syscall/unix/getrandom_solaris.go b/src/internal/syscall/unix/getrandom_solaris.go
index d86775cd98c..cf4f35a4198 100644
--- a/src/internal/syscall/unix/getrandom_solaris.go
+++ b/src/internal/syscall/unix/getrandom_solaris.go
@@ -16,7 +16,7 @@ import (
 
 var procGetrandom uintptr
 
-var getrandomUnsupported int32 // atomic
+var getrandomUnsupported atomic.Bool
 
 // GetRandomFlag is a flag supported by the getrandom system call.
 type GetRandomFlag uintptr
@@ -34,7 +34,7 @@ func GetRandom(p []byte, flags GetRandomFlag) (n int, err error) {
 	if len(p) == 0 {
 		return 0, nil
 	}
-	if atomic.LoadInt32(&getrandomUnsupported) != 0 {
+	if getrandomUnsupported.Load() {
 		return 0, syscall.ENOSYS
 	}
 	r1, _, errno := syscall6(uintptr(unsafe.Pointer(&procGetrandom)),
@@ -45,7 +45,7 @@ func GetRandom(p []byte, flags GetRandomFlag) (n int, err error) {
 		0, 0, 0)
 	if errno != 0 {
 		if errno == syscall.ENOSYS {
-			atomic.StoreInt32(&getrandomUnsupported, 1)
+			getrandomUnsupported.Store(true)
 		}
 		return 0, errno
 	}