diff --git a/VCFv4.5.draft.tex b/VCFv4.5.draft.tex
index 8f2fff0d..c3f4e9bf 100644
--- a/VCFv4.5.draft.tex
+++ b/VCFv4.5.draft.tex
@@ -311,7 +311,7 @@ \subsubsection{Pedigree field format}
 
 \subsection{Header line syntax}
 \label{header-line}
-The header line names the 8 fixed, mandatory columns. These columns are as follows:
+The mandatory header line names the 8 fixed, mandatory columns. These columns are as follows:
 \begin{center}
        \#CHROM
 \qquad POS