diff --git a/docs/language/dartLangSpec.tex b/docs/language/dartLangSpec.tex
index fafc0c0..bad2ba0 100644
--- a/docs/language/dartLangSpec.tex
+++ b/docs/language/dartLangSpec.tex
@@ -3989,10 +3989,12 @@
   .
 
 {\bf stringContentTDQ:}\~{}( `$\backslash$' $|$ `{\escapegrammar \texttt{"""}}' $|$ `\$');
+  `$\backslash$' \~{}( NEWLINE );
   stringInterpolation
   .
 
 {\bf stringContentTSQ:}\~{}( `$\backslash$' $|$ `{\escapegrammar \code{'}\code{'}\code{'}}' $|$ `\$');
+  `$\backslash$' \~{}( NEWLINE );
   stringInterpolation
   .