diff --git a/imports/mkstdlib.go b/imports/mkstdlib.go
index 3a2e39d7..62f3321f 100644
--- a/imports/mkstdlib.go
+++ b/imports/mkstdlib.go
@@ -86,6 +86,10 @@ func main() {
 			outf("\t%q: %q,\n", key, fullImport[key])
 		}
 	}
+	outf("\n")
+	for _, sym := range [...]string{"Alignof", "ArbitraryType", "Offsetof", "Pointer", "Sizeof"} {
+		outf("\t%q: %q,\n", "unsafe."+sym, "unsafe")
+	}
 	outf("}\n")
 	fmtbuf, err := format.Source(buf.Bytes())
 	if err != nil {
diff --git a/imports/zstdlib.go b/imports/zstdlib.go
index 6fe21b6b..eb89b2d0 100644
--- a/imports/zstdlib.go
+++ b/imports/zstdlib.go
@@ -9153,4 +9153,10 @@ var stdlib = map[string]string{
 	"zlib.NoCompression":                          "compress/zlib",
 	"zlib.Resetter":                               "compress/zlib",
 	"zlib.Writer":                                 "compress/zlib",
+
+	"unsafe.Alignof":       "unsafe",
+	"unsafe.ArbitraryType": "unsafe",
+	"unsafe.Offsetof":      "unsafe",
+	"unsafe.Pointer":       "unsafe",
+	"unsafe.Sizeof":        "unsafe",
 }