diff --git a/xC-gen-proto-go.awk b/xC-gen-proto-go.awk
index eb08477..a2244b5 100644
--- a/xC-gen-proto-go.awk
+++ b/xC-gen-proto-go.awk
@@ -100,6 +100,7 @@ function codegen_begin() {
 	print "package main"
 	print ""
 	print "import ("
+	print "\t`encoding/base64`"
 	print "\t`encoding/binary`"
 	print "\t`encoding/json`"
 	print "\t`errors`"
@@ -274,6 +275,14 @@ function codegen_struct_field_marshal(d, cg,    camel, f, marshal) {
 		return
 	}
 
+	if (d["type"] == "u8") {
+		append(cg, "marshal",
+			"\tb = append(b, `,\"" decapitalize(camel) "\":\"`...)\n" \
+			"\tb = append(b, base64.StdEncoding.EncodeToString(" f ")...)\n" \
+			"\tb = append(b, '\"')\n")
+		return
+	}
+
 	if (CodegenIsMarshaler[d["type"]])
 		marshal = f "[i].MarshalJSON()"
 	else