diff --git a/syntax/scala.vim b/syntax/scala.vim
index bb0fe0a..f99e24b 100644
--- a/syntax/scala.vim
+++ b/syntax/scala.vim
@@ -180,7 +180,7 @@ hi link scalaNumber Number
 
 syn region scalaRoundBrackets start="(" end=")" skipwhite contained contains=scalaTypeDeclaration,scalaSquareBrackets,scalaRoundBrackets
 
-syn region scalaSquareBrackets matchgroup=scalaSquareBracketsBrackets start="\[" end="\]" skipwhite nextgroup=scalaTypeExtension contains=scalaTypeDeclaration,scalaSquareBrackets,scalaTypeOperator,scalaTypeAnnotationParameter
+syn region scalaSquareBrackets matchgroup=scalaSquareBracketsBrackets start="\[" end="\]" skipwhite nextgroup=scalaTypeExtension contains=scalaTypeDeclaration,scalaSquareBrackets,scalaTypeOperator,scalaTypeAnnotationParameter,scalaString
 syn match scalaTypeOperator /[-+=:<>]\+/ contained
 syn match scalaTypeAnnotationParameter /@\<[`_A-Za-z0-9$]\+\>/ contained
 hi link scalaSquareBracketsBrackets Type
diff --git a/syntax/testfile.scala b/syntax/testfile.scala
index 1790c6f..44815f3 100644
--- a/syntax/testfile.scala
+++ b/syntax/testfile.scala
@@ -171,6 +171,8 @@ class ScalaClass(i: Int = 12, b: Trait[A, Trait[B, C]]) extends B with SomeTrait
 
   def someFunc[A <: B, X =:= Y]
 
+  func["(singleton"]
+
   val soManyEscapes = "\\\"\u0031\n\b\r\f\t" // and a comment
   val soManyEscapes = """\\\"\u0031\n\b\r\f\t""" // and a comment
   val soManyEscapes = s"\\\"\u0031\n\b\r\f\t" // and a comment