diff --git a/runtime-testsuite/resources/org/antlr/v4/test/runtime/templates/TypeScript.test.stg b/runtime-testsuite/resources/org/antlr/v4/test/runtime/templates/TypeScript.test.stg
index ba8a332809..4df39f55e9 100644
--- a/runtime-testsuite/resources/org/antlr/v4/test/runtime/templates/TypeScript.test.stg
+++ b/runtime-testsuite/resources/org/antlr/v4/test/runtime/templates/TypeScript.test.stg
@@ -1,5 +1,5 @@
-writeln(s) ::= <<console.log(<s> || '');>>
-write(s) ::= <<process.stdout.write(<s> || '');>>
+writeln(s) ::= <<console.log(<s>);>>
+write(s) ::= <<process.stdout.write(<s>);>>
 writeList(s) ::= <<console.log(<s; separator="+">);>>
 
 False() ::= "false"