diff --git a/GNUmakefile.in b/GNUmakefile.in
index fcb0dc8..152e10a 100644
--- a/GNUmakefile.in
+++ b/GNUmakefile.in
@@ -96,7 +96,7 @@ clean:
 	rm -f *'~' '#'*
 
 
-TEST_FONTS= ecbi0900 logo10
+TEST_FONTS= ecbi0900 logo10 cmr11
 test:
 	$(foreach a, $(TEST_FONTS), $(PYTHON) mftrace.py --glyphs 65 -V $(a) &&)true