diff --git a/src/internal/syscall/unix/ioctl_aix.go b/src/internal/syscall/unix/ioctl_aix.go
index 19d56c36a1..d361533b5c 100644
--- a/src/internal/syscall/unix/ioctl_aix.go
+++ b/src/internal/syscall/unix/ioctl_aix.go
@@ -16,7 +16,7 @@ var libc_ioctl uintptr
 // Implemented in syscall/syscall_aix.go.
 func syscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno)
 
-func Ioctl(fd int, cmd int, args uintptr) (err error) {
+func Ioctl(fd int, cmd int, args unsafe.Pointer) (err error) {
 	_, _, e1 := syscall6(uintptr(unsafe.Pointer(&libc_ioctl)), 3, uintptr(fd), uintptr(cmd), uintptr(args), 0, 0, 0)
 	if e1 != 0 {
 		err = e1
diff --git a/src/net/interface_aix.go b/src/net/interface_aix.go
index 49f78c2abb..7ad45d1175 100644
--- a/src/net/interface_aix.go
+++ b/src/net/interface_aix.go
@@ -78,7 +78,7 @@ func interfaceTable(ifindex int) ([]Interface, error) {
 				// Retrieve MTU
 				ifr := &ifreq{}
 				copy(ifr.Name[:], ifi.Name)
-				err = unix.Ioctl(sock, syscall.SIOCGIFMTU, uintptr(unsafe.Pointer(ifr)))
+				err = unix.Ioctl(sock, syscall.SIOCGIFMTU, unsafe.Pointer(ifr))
 				if err != nil {
 					return nil, err
 				}