diff --git a/libyul/backends/wasm/EWasmAST.h b/libyul/backends/wasm/EWasmAST.h
index f819ae3ab..39172db36 100644
--- a/libyul/backends/wasm/EWasmAST.h
+++ b/libyul/backends/wasm/EWasmAST.h
@@ -30,6 +30,7 @@ namespace wasm
 {
 
 struct Literal;
+struct StringLiteral;
 struct LocalVariable;
 struct GlobalVariable;
 struct Label;
@@ -43,12 +44,13 @@ struct Loop;
 struct Break;
 struct Continue;
 using Expression = boost::variant<
-	Literal, LocalVariable, GlobalVariable, Label,
+	Literal, StringLiteral, LocalVariable, GlobalVariable, Label,
 	FunctionCall, BuiltinCall, LocalAssignment, GlobalAssignment,
 	Block, If, Loop, Break, Continue
 >;
 
 struct Literal { uint64_t value; };
+struct StringLiteral { std::string value; };
 struct LocalVariable { std::string name; };
 struct GlobalVariable { std::string name; };
 struct Label { std::string name; };
diff --git a/libyul/backends/wasm/EWasmCodeTransform.cpp b/libyul/backends/wasm/EWasmCodeTransform.cpp
index 91aa37965..e345c4946 100644
--- a/libyul/backends/wasm/EWasmCodeTransform.cpp
+++ b/libyul/backends/wasm/EWasmCodeTransform.cpp
@@ -126,8 +126,18 @@ wasm::Expression EWasmCodeTransform::operator()(FunctionalInstruction const& _f)
 
 wasm::Expression EWasmCodeTransform::operator()(FunctionCall const& _call)
 {
-	if (m_dialect.builtin(_call.functionName.name))
-		return wasm::BuiltinCall{_call.functionName.name.str(), visit(_call.arguments)};
+	if (BuiltinFunction const* builtin = m_dialect.builtin(_call.functionName.name))
+	{
+		if (builtin->literalArguments)
+		{
+			vector<wasm::Expression> literals;
+			for (auto const& arg: _call.arguments)
+				literals.emplace_back(wasm::StringLiteral{boost::get<Literal>(arg).value.str()});
+			return wasm::BuiltinCall{_call.functionName.name.str(), std::move(literals)};
+		}
+		else
+			return wasm::BuiltinCall{_call.functionName.name.str(), visit(_call.arguments)};
+	}
 	else
 		// If this function returns multiple values, then the first one will
 		// be returned in the expression itself and the others in global variables.
diff --git a/libyul/backends/wasm/EWasmToText.cpp b/libyul/backends/wasm/EWasmToText.cpp
index 4e2bf5c2b..ec6060e71 100644
--- a/libyul/backends/wasm/EWasmToText.cpp
+++ b/libyul/backends/wasm/EWasmToText.cpp
@@ -56,6 +56,13 @@ string EWasmToText::operator()(wasm::Literal const& _literal)
 	return "(i64.const " + to_string(_literal.value) + ")";
 }
 
+string EWasmToText::operator()(wasm::StringLiteral const& _literal)
+{
+	string quoted = boost::replace_all_copy(_literal.value, "\\", "\\\\");
+	boost::replace_all(quoted, "\"", "\\\"");
+	return "\"" + quoted + "\"";
+}
+
 string EWasmToText::operator()(wasm::LocalVariable const& _identifier)
 {
 	return "(get_local $" + _identifier.name + ")";
diff --git a/libyul/backends/wasm/EWasmToText.h b/libyul/backends/wasm/EWasmToText.h
index 61bcf5b32..91c64daba 100644
--- a/libyul/backends/wasm/EWasmToText.h
+++ b/libyul/backends/wasm/EWasmToText.h
@@ -38,6 +38,7 @@ public:
 
 public:
 	std::string operator()(wasm::Literal const& _literal);
+	std::string operator()(wasm::StringLiteral const& _literal);
 	std::string operator()(wasm::LocalVariable const& _identifier);
 	std::string operator()(wasm::GlobalVariable const& _identifier);
 	std::string operator()(wasm::Label const& _label);