diff --git a/Doc/lib/libposixfile.tex b/Doc/lib/libposixfile.tex
index fc04d8d6c24..7d824cf1efa 100644
--- a/Doc/lib/libposixfile.tex
+++ b/Doc/lib/libposixfile.tex
@@ -23,15 +23,15 @@ The posixfile module defines the following constants:
 
 \setindexsubitem{(in module posixfile)}
 \begin{datadesc}{SEEK_SET}
-offset is calculated from the start of the file
+Offset is calculated from the start of the file.
 \end{datadesc}
 
 \begin{datadesc}{SEEK_CUR}
-offset is calculated from the current position in the file
+Offset is calculated from the current position in the file.
 \end{datadesc}
 
 \begin{datadesc}{SEEK_END}
-offset is calculated from the end of the file
+Offset is calculated from the end of the file.
 \end{datadesc}
 
 The posixfile module defines the following functions:
diff --git a/Doc/libposixfile.tex b/Doc/libposixfile.tex
index fc04d8d6c24..7d824cf1efa 100644
--- a/Doc/libposixfile.tex
+++ b/Doc/libposixfile.tex
@@ -23,15 +23,15 @@ The posixfile module defines the following constants:
 
 \setindexsubitem{(in module posixfile)}
 \begin{datadesc}{SEEK_SET}
-offset is calculated from the start of the file
+Offset is calculated from the start of the file.
 \end{datadesc}
 
 \begin{datadesc}{SEEK_CUR}
-offset is calculated from the current position in the file
+Offset is calculated from the current position in the file.
 \end{datadesc}
 
 \begin{datadesc}{SEEK_END}
-offset is calculated from the end of the file
+Offset is calculated from the end of the file.
 \end{datadesc}
 
 The posixfile module defines the following functions: