diff --git a/Makefile.pre.in b/Makefile.pre.in
index d60d48e5f9bb51..11ef49e34cd8fc 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -1664,6 +1664,7 @@ clean: pycremoval
 	find build -name '*.py[co]' -exec rm -f {} ';' || true
 	-rm -f pybuilddir.txt
 	-rm -f Lib/lib2to3/*Grammar*.pickle
+	-rm -f Lib/*.cover
 	-rm -f Programs/_testembed Programs/_freeze_importlib
 	-find build -type f -a ! -name '*.gc??' -exec rm -f {} ';'
 	-rm -f Include/pydtrace_probes.h