diff --git a/doc/CpptrajManual.pdf b/doc/CpptrajManual.pdf
index 52c76005e6..9b8d909fb6 100644
Binary files a/doc/CpptrajManual.pdf and b/doc/CpptrajManual.pdf differ
diff --git a/doc/DocumentChecksums.txt b/doc/DocumentChecksums.txt
index 3ee48feb53..6566b16707 100644
--- a/doc/DocumentChecksums.txt
+++ b/doc/DocumentChecksums.txt
@@ -1,3 +1,3 @@
 b37726e7a841f6fc695ecd7fb040ffbf  CpptrajDevelopmentGuide.lyx
-e92ae2d01bce0a0a8b9ee6e03207dba0  cpptraj.lyx
+8fe330adac3e61d024fceb51b814a8ba  cpptraj.lyx
 5d9b5b5ed47a3ded57b6464df99b3585  CpptrajManual.lyx
diff --git a/doc/cpptraj.lyx b/doc/cpptraj.lyx
index ca13c7e621..e99268f12a 100644
--- a/doc/cpptraj.lyx
+++ b/doc/cpptraj.lyx
@@ -38700,7 +38700,7 @@ byresX
 \series bold
 bymolX
 \series default
- are specified, distances will be between the centers of of residues/molecules
+ are specified, distances will be between the centers of residues/molecules
  selected by 
 \series bold
 <solvent mask1>