diff --git a/lib/layouts/noweb.module b/lib/layouts/noweb.module
index f0ad6f6f8d..584c977bf2 100644
--- a/lib/layouts/noweb.module
+++ b/lib/layouts/noweb.module
@@ -11,7 +11,7 @@
 #                   resembles more closely the produced paper doc (more WYSIWYG)
 #
 
-Format 11
+Format 15
 OutputType              literate
 
 # FIXME: Use the Chunk layout from the sweave module? 
diff --git a/lib/layouts/sweave.module b/lib/layouts/sweave.module
index 8bd9fd3135..ca36f1f1a3 100644
--- a/lib/layouts/sweave.module
+++ b/lib/layouts/sweave.module
@@ -9,7 +9,7 @@
 # - \setkeys{Gin}{width=0.8\textwidth} How to add such a "beast"? This is used to define
 #   the size of produced plots.
 
-Format 11
+Format 15
 OutputType              literate
 OutputFormat           sweave