diff --git a/test/tools/ossfuzz/protoToYul.cpp b/test/tools/ossfuzz/protoToYul.cpp
index 742b62d39..03d3facd9 100644
--- a/test/tools/ossfuzz/protoToYul.cpp
+++ b/test/tools/ossfuzz/protoToYul.cpp
@@ -19,10 +19,40 @@
 
 #include <ostream>
 #include <sstream>
+#include <boost/range/algorithm_ext/erase.hpp>
 
 using namespace std;
 using namespace yul::test::yul_fuzzer;
 
+std::string yul::test::yul_fuzzer::createHex(std::string const& _hexBytes)
+{
+	std::string tmp{_hexBytes};
+	if (!tmp.empty())
+	{
+		boost::range::remove_erase_if(tmp, [=](char c) -> bool {
+			return !std::isxdigit(c);
+		});
+		tmp = tmp.substr(0, 64);
+	}
+	// We need this awkward if case hex literals cannot be empty.
+	if (tmp.empty())
+		tmp = "1";
+	return tmp;
+}
+
+std::string yul::test::yul_fuzzer::createAlphaNum(std::string const& _strBytes)
+{
+	std::string tmp{_strBytes};
+	if (!tmp.empty())
+	{
+		boost::range::remove_erase_if(tmp, [=](char c) -> bool {
+			return !(std::isalpha(c) || std::isdigit(c));
+		});
+		tmp = tmp.substr(0, 32);
+	}
+	return tmp;
+}
+
 ostream& yul::test::yul_fuzzer::operator<<(ostream& _os, Literal const& _x)
 {
 	switch (_x.literal_oneof_case())
@@ -30,6 +60,12 @@ ostream& yul::test::yul_fuzzer::operator<<(ostream& _os, Literal const& _x)
 		case Literal::kIntval:
 			_os << _x.intval();
 			break;
+		case Literal::kHexval:
+			_os << "0x" << createHex(_x.hexval());
+			break;
+		case Literal::kStrval:
+			_os << "\"" << createAlphaNum(_x.strval()) << "\"";
+			break;
 		case Literal::LITERAL_ONEOF_NOT_SET:
 			_os << "1";
 			break;
@@ -301,9 +337,7 @@ ostream& yul::test::yul_fuzzer::operator<<(ostream& _os, Block const& _x)
 		_os << "}\n";
 	}
 	else
-	{
 		_os << "{}\n";
-	}
 	return _os;
 }
 
diff --git a/test/tools/ossfuzz/protoToYul.h b/test/tools/ossfuzz/protoToYul.h
index 3a427931f..1c06370cc 100644
--- a/test/tools/ossfuzz/protoToYul.h
+++ b/test/tools/ossfuzz/protoToYul.h
@@ -31,6 +31,8 @@ class Function;
 
 std::string functionToString(Function const& input);
 std::string protoToYul(uint8_t const* data, size_t size);
+std::string createHex(std::string const& _hexBytes);
+std::string createAlphaNum(std::string const& _strBytes);
 std::ostream& operator<<(std::ostream& _os, BinaryOp const& _x);
 std::ostream& operator<<(std::ostream& _os, Block const& _x);
 std::ostream& operator<<(std::ostream& _os, Literal const& _x);
diff --git a/test/tools/ossfuzz/yulProto.proto b/test/tools/ossfuzz/yulProto.proto
index 33fd51e13..bd8468d9b 100644
--- a/test/tools/ossfuzz/yulProto.proto
+++ b/test/tools/ossfuzz/yulProto.proto
@@ -48,6 +48,8 @@ message VarRef {
 message Literal {
   oneof literal_oneof {
     uint64 intval = 1;
+    string hexval = 2;
+    string strval = 3;
   }
 }