diff --git a/Doc/Makefile b/Doc/Makefile
index 4e48d685026..3988a008f56 100644
--- a/Doc/Makefile
+++ b/Doc/Makefile
@@ -111,7 +111,7 @@ LIBFILES = lib.tex \
     libstat.tex libstrio.tex libundoc.tex libmailcap.tex libglob.tex \
     libuser.tex libanydbm.tex librandom.tex libsite.tex libwhichdb.tex \
     libbase64.tex libfnmatch.tex libquopri.tex libzlib.tex libsocksvr.tex \
-    libmailbox.tex libcommands.tex
+    libmailbox.tex libcommands.tex libcmath.tex
 
 # Library document
 lib.dvi: $(LIBFILES)
diff --git a/Doc/lib.tex b/Doc/lib.tex
index 61984455ebd..2c3ceaf8705 100644
--- a/Doc/lib.tex
+++ b/Doc/lib.tex
@@ -100,6 +100,7 @@ to Python and how to embed it in other applications.
 
 \input{libmisc}			% Miscellaneous Services
 \input{libmath}
+\input{libcmath}
 \input{libwhrandom}
 \input{librandom}
 \input{librand}
diff --git a/Doc/lib/lib.tex b/Doc/lib/lib.tex
index 61984455ebd..2c3ceaf8705 100644
--- a/Doc/lib/lib.tex
+++ b/Doc/lib/lib.tex
@@ -100,6 +100,7 @@ to Python and how to embed it in other applications.
 
 \input{libmisc}			% Miscellaneous Services
 \input{libmath}
+\input{libcmath}
 \input{libwhrandom}
 \input{librandom}
 \input{librand}