diff --git a/go/ssa/interp/external.go b/go/ssa/interp/external.go
index 06cf514d..8b33f25c 100644
--- a/go/ssa/interp/external.go
+++ b/go/ssa/interp/external.go
@@ -142,6 +142,7 @@ func init() {
 		"syscall.RawSyscall":               ext۰syscall۰RawSyscall,
 		"syscall.Read":                     ext۰syscall۰Read,
 		"syscall.ReadDirent":               ext۰syscall۰ReadDirent,
+		"syscall.Readlink":                 ext۰syscall۰Readlink,
 		"syscall.Stat":                     ext۰syscall۰Stat,
 		"syscall.Write":                    ext۰syscall۰Write,
 		"syscall.runtime_envs":             ext۰runtime۰environ,
@@ -485,6 +486,13 @@ func ext۰syscall۰Getpid(fr *frame, args []value) value {
 	return syscall.Getpid()
 }
 
+func ext۰syscall۰Readlink(fr *frame, args []value) value {
+	path := args[0].(string)
+	buf := valueToBytes(args[1])
+	n, err := syscall.Readlink(path, buf)
+	return tuple{n, wrapError(err)}
+}
+
 func valueToBytes(v value) []byte {
 	in := v.([]value)
 	b := make([]byte, len(in))