diff --git a/runtime-testsuite/resources/org/antlr/v4/test/runtime/templates/ParserErrors/ContextListGetters.stg b/runtime-testsuite/resources/org/antlr/v4/test/runtime/templates/ParserErrors/ContextListGetters.stg
index 25ee778f4..3f6016ce5 100644
--- a/runtime-testsuite/resources/org/antlr/v4/test/runtime/templates/ParserErrors/ContextListGetters.stg
+++ b/runtime-testsuite/resources/org/antlr/v4/test/runtime/templates/ParserErrors/ContextListGetters.stg
@@ -29,6 +29,6 @@ grammar <grammarName>;
 <DeclareContextListGettersFunction()>
 }
 s : (a | b)+;
-a : 'a' {<write("'a'")>};
-b : 'b' {<write("'b'")>};
+a : 'a' {<write("\"a\"")>};
+b : 'b' {<write("\"b\"")>};
 >>
diff --git a/runtime-testsuite/test/org/antlr/v4/test/runtime/csharp/TestParserErrors.java b/runtime-testsuite/test/org/antlr/v4/test/runtime/csharp/TestParserErrors.java
index 6abff096b..bad89a082 100644
--- a/runtime-testsuite/test/org/antlr/v4/test/runtime/csharp/TestParserErrors.java
+++ b/runtime-testsuite/test/org/antlr/v4/test/runtime/csharp/TestParserErrors.java
@@ -51,8 +51,8 @@ public class TestParserErrors extends BaseTest {
 		grammarBuilder.append("}\n");
 		grammarBuilder.append("}\n");
 		grammarBuilder.append("s : (a | b)+;\n");
-		grammarBuilder.append("a : 'a' {Console.Write('a');};\n");
-		grammarBuilder.append("b : 'b' {Console.Write('b');};");
+		grammarBuilder.append("a : 'a' {Console.Write(\"a\");};\n");
+		grammarBuilder.append("b : 'b' {Console.Write(\"b\");};");
 		String grammar = grammarBuilder.toString();
 		String input ="abab";
 		String found = execParser("T.g4", grammar, "TParser", "TLexer", "s", input, true);
diff --git a/runtime-testsuite/test/org/antlr/v4/test/runtime/go/TestParserErrors.java b/runtime-testsuite/test/org/antlr/v4/test/runtime/go/TestParserErrors.java
index 4df7a2b29..4e1bc1f19 100644
--- a/runtime-testsuite/test/org/antlr/v4/test/runtime/go/TestParserErrors.java
+++ b/runtime-testsuite/test/org/antlr/v4/test/runtime/go/TestParserErrors.java
@@ -55,8 +55,8 @@ public class TestParserErrors extends BaseTest {
 		grammarBuilder.append("}\n");
 		grammarBuilder.append("}\n");
 		grammarBuilder.append("s : (a | b)+;\n");
-		grammarBuilder.append("a : 'a' {fmt.Print('a')};\n");
-		grammarBuilder.append("b : 'b' {fmt.Print('b')};");
+		grammarBuilder.append("a : 'a' {fmt.Print(\"a\")};\n");
+		grammarBuilder.append("b : 'b' {fmt.Print(\"b\")};");
 		String grammar = grammarBuilder.toString();
 		String input ="abab";
 		String found = execParser("T.g4", grammar, "TParser", "TLexer",
diff --git a/runtime-testsuite/test/org/antlr/v4/test/runtime/java/TestParserErrors.java b/runtime-testsuite/test/org/antlr/v4/test/runtime/java/TestParserErrors.java
index 4788eb79b..fb0bfd94d 100644
--- a/runtime-testsuite/test/org/antlr/v4/test/runtime/java/TestParserErrors.java
+++ b/runtime-testsuite/test/org/antlr/v4/test/runtime/java/TestParserErrors.java
@@ -61,8 +61,8 @@ public class TestParserErrors extends BaseTest {
 		grammarBuilder.append("}\n");
 		grammarBuilder.append("}\n");
 		grammarBuilder.append("s : (a | b)+;\n");
-		grammarBuilder.append("a : 'a' {System.out.print('a');};\n");
-		grammarBuilder.append("b : 'b' {System.out.print('b');};");
+		grammarBuilder.append("a : 'a' {System.out.print(\"a\");};\n");
+		grammarBuilder.append("b : 'b' {System.out.print(\"b\");};");
 		String grammar = grammarBuilder.toString();
 
 
diff --git a/runtime-testsuite/test/org/antlr/v4/test/runtime/javascript/node/TestParserErrors.java b/runtime-testsuite/test/org/antlr/v4/test/runtime/javascript/node/TestParserErrors.java
index ec893e13c..ec83d8463 100644
--- a/runtime-testsuite/test/org/antlr/v4/test/runtime/javascript/node/TestParserErrors.java
+++ b/runtime-testsuite/test/org/antlr/v4/test/runtime/javascript/node/TestParserErrors.java
@@ -57,8 +57,8 @@ public class TestParserErrors extends BaseTest {
 		grammarBuilder.append("    };\n");
 		grammarBuilder.append("}\n");
 		grammarBuilder.append("s : (a | b)+;\n");
-		grammarBuilder.append("a : 'a' {process.stdout.write('a');};\n");
-		grammarBuilder.append("b : 'b' {process.stdout.write('b');};");
+		grammarBuilder.append("a : 'a' {process.stdout.write(\"a\");};\n");
+		grammarBuilder.append("b : 'b' {process.stdout.write(\"b\");};");
 		String grammar = grammarBuilder.toString();
 		String input ="abab";
 		String found = execParser("T.g4", grammar, "TParser", "TLexer",
diff --git a/runtime-testsuite/test/org/antlr/v4/test/runtime/python2/TestParserErrors.java b/runtime-testsuite/test/org/antlr/v4/test/runtime/python2/TestParserErrors.java
index 787fc9f8e..91329d88c 100644
--- a/runtime-testsuite/test/org/antlr/v4/test/runtime/python2/TestParserErrors.java
+++ b/runtime-testsuite/test/org/antlr/v4/test/runtime/python2/TestParserErrors.java
@@ -62,8 +62,8 @@ public class TestParserErrors extends BasePython2Test {
 		grammarBuilder.append("    b = s.b()\n");
 		grammarBuilder.append("}\n");
 		grammarBuilder.append("s : (a | b)+;\n");
-		grammarBuilder.append("a : 'a' {print('a',end='')};\n");
-		grammarBuilder.append("b : 'b' {print('b',end='')};");
+		grammarBuilder.append("a : 'a' {print(\"a\",end='')};\n");
+		grammarBuilder.append("b : 'b' {print(\"b\",end='')};");
 		String grammar = grammarBuilder.toString();
 
 
diff --git a/runtime-testsuite/test/org/antlr/v4/test/runtime/python3/TestParserErrors.java b/runtime-testsuite/test/org/antlr/v4/test/runtime/python3/TestParserErrors.java
index be494441b..a611eb426 100644
--- a/runtime-testsuite/test/org/antlr/v4/test/runtime/python3/TestParserErrors.java
+++ b/runtime-testsuite/test/org/antlr/v4/test/runtime/python3/TestParserErrors.java
@@ -62,8 +62,8 @@ public class TestParserErrors extends BasePython3Test {
 		grammarBuilder.append("    b = s.b()\n");
 		grammarBuilder.append("}\n");
 		grammarBuilder.append("s : (a | b)+;\n");
-		grammarBuilder.append("a : 'a' {print('a',end='')};\n");
-		grammarBuilder.append("b : 'b' {print('b',end='')};");
+		grammarBuilder.append("a : 'a' {print(\"a\",end='')};\n");
+		grammarBuilder.append("b : 'b' {print(\"b\",end='')};");
 		String grammar = grammarBuilder.toString();