diff --git a/doc/deployable-lightning.lyx b/doc/deployable-lightning.lyx
index ede692ef1..360347319 100644
--- a/doc/deployable-lightning.lyx
+++ b/doc/deployable-lightning.lyx
@@ -755,7 +755,7 @@ This form allows A and B to create commitment transactions which spends
 \end_layout
 
 \begin_layout Standard
-This we introduce an 
+Thus we introduce an 
 \emph on
 escape
 \emph default
diff --git a/doc/deployable-lightning.pdf b/doc/deployable-lightning.pdf
index ca2b075b2..8c0c26214 100644
Binary files a/doc/deployable-lightning.pdf and b/doc/deployable-lightning.pdf differ