diff --git a/pmd-dart/src/main/antlr4/net/sourceforge/pmd/lang/dart/antlr4/Dart2.g4 b/pmd-dart/src/main/antlr4/net/sourceforge/pmd/lang/dart/antlr4/Dart2.g4
index 1c3dffa8c6..aae6073e6a 100644
--- a/pmd-dart/src/main/antlr4/net/sourceforge/pmd/lang/dart/antlr4/Dart2.g4
+++ b/pmd-dart/src/main/antlr4/net/sourceforge/pmd/lang/dart/antlr4/Dart2.g4
@@ -344,8 +344,8 @@ booleanLiteral
 stringLiteral: SingleLineString;
 //stringLiteral: SingleLineString;
 SingleLineString
-  : '"' ~["]* '"'
-  | '\'' ~[']* '\''
+  : '"' (~["] | '\\"')* '"'
+  | '\'' (~['] | '\\\'')* '\''
 //  | 'r\'' (~('\'' | NEWLINE))* '\'' // TODO
 //  | 'r"' (~('\'' | NEWLINE))* '"'
   ;