diff --git a/Doc/Makefile.deps b/Doc/Makefile.deps
index f3845b8..3652a27 100644
--- a/Doc/Makefile.deps
+++ b/Doc/Makefile.deps
@@ -137,6 +137,8 @@
 	lib/libarray.tex \
 	lib/liballos.tex \
 	lib/libos.tex \
+	lib/libdatetime.tex \
+	lib/tzinfo-examples.py \
 	lib/libtime.tex \
 	lib/libgetopt.tex \
 	lib/libtempfile.tex \
diff --git a/Doc/lib/lib.tex b/Doc/lib/lib.tex
index 9f6f526..c7a236a 100644
--- a/Doc/lib/lib.tex
+++ b/Doc/lib/lib.tex
@@ -140,6 +140,7 @@
 \input{libstatvfs}
 \input{libfilecmp}
 \input{libpopen2}
+\input{libdatetime}
 \input{libtime}
 \input{libsched}
 \input{libmutex}