diff --git a/Doc/Makefile.deps b/Doc/Makefile.deps
index b3afc2161ce..dc03a194ef8 100644
--- a/Doc/Makefile.deps
+++ b/Doc/Makefile.deps
@@ -114,6 +114,7 @@ LIBFILES= $(MANSTYLES) $(INDEXSTYLES) $(COMMONTEX) \
 	lib/libdifflib.tex \
 	lib/libdoctest.tex \
 	lib/libunittest.tex \
+	lib/libtest.tex \
 	lib/libtypes.tex \
 	lib/libtraceback.tex \
 	lib/libpickle.tex \