diff --git a/Doc/lib/libimghdr.tex b/Doc/lib/libimghdr.tex
index 0dec8a16bfe..e8ec4e9448c 100644
--- a/Doc/lib/libimghdr.tex
+++ b/Doc/lib/libimghdr.tex
@@ -1,4 +1,4 @@
-\section{Standard module \sectcode{imghdr}}
+\section{Standard Module \sectcode{imghdr}}
 \label{module-imghdr}
 \stmodindex{imghdr}
 
diff --git a/Doc/libimghdr.tex b/Doc/libimghdr.tex
index 0dec8a16bfe..e8ec4e9448c 100644
--- a/Doc/libimghdr.tex
+++ b/Doc/libimghdr.tex
@@ -1,4 +1,4 @@
-\section{Standard module \sectcode{imghdr}}
+\section{Standard Module \sectcode{imghdr}}
 \label{module-imghdr}
 \stmodindex{imghdr}