Added dependency on libtabnanny.tex.
diff --git a/Doc/Makefile.deps b/Doc/Makefile.deps
index 77bd8ae..96aa69b 100644
--- a/Doc/Makefile.deps
+++ b/Doc/Makefile.deps
@@ -196,6 +196,7 @@
 	../lib/windows.tex \
 	../lib/libpyclbr.tex \
 	../lib/libtokenize.tex \
+	../lib/libtabnanny.tex \
 	../lib/libmhlib.tex \
 	../lib/libtelnetlib.tex \
 	../lib/libcolorsys.tex \