diff --git a/syntax/vyper.vim b/syntax/vyper.vim
index defdf6f..9487308 100644
--- a/syntax/vyper.vim
+++ b/syntax/vyper.vim
@@ -55,9 +55,11 @@ syn match vyperAddressError "\<0x\x\{0,39}\>" display
 syn match vyperAddressError "\<0x\x\{41,}\>" display
 syn match vyperAddressError "\<0x\x*\X\+.\+\>" display
 syn match vyperDecimal "\<\d*\.\d\+\>" display
-"String (String inside a string doesn't work properly!)
-syn match vyperString +".\{-}"+ display
-syn match vyperString +'.\{-}'+ display
+"String
+syntax match vyperSpecial "\\\d\d\d\|\\."
+syntax region vyperString start=+"+  skip=+\\\\\|\\"+  end=+"\|$+ contains=vyperSpecial
+syntax region vyperString  start=+'+  skip=+\\\\\|\\'+  end=+'\|$+ contains=vyperSpecial
+
 "Docstrings
 syn region vyperString start=+[uU]\=\z('''\|"""\)+ end="\z1" contains=vyperTodo,vyperNatspec keepend