also run headless in coverage

diff --git a/Makefile b/Makefile
index 7d2905819ca111818c54d6f4652e7fb2d760bac2..2d542f3f5041e17f579c796a189b65819f46e07a 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -146,6 +146,8 @@ headless-test: blobs.test
 coverage: blobs.cover
        @echo run: blobs.cover
        @./blobs.cover
+       @echo run: blobs.cover --headless
+       @./blobs.cover --headless
 
 codecov: coverage
        @echo run: codecov.io