diff --git a/tests/run-make/unknown-mod-stdin/Makefile b/tests/run-make/unknown-mod-stdin/Makefile
index c1931765382e..bc468387a2c1 100644
--- a/tests/run-make/unknown-mod-stdin/Makefile
+++ b/tests/run-make/unknown-mod-stdin/Makefile
@@ -5,7 +5,6 @@ include ../tools.mk
 all:
 	echo 'mod unknown;' | $(RUSTC) --crate-type rlib - >$(TMPDIR)/unknown-mod.stdout 2>$(TMPDIR)/unknown-mod.stderr || echo "failed successfully"
 
-# Bless like this: RUSTC_BLESS_TEST=1 ./x.py test tests/run-make/unknown-mod-stdin
 ifdef RUSTC_BLESS_TEST
 	cp "$(TMPDIR)"/unknown-mod.stdout unknown-mod.stdout
 	cp "$(TMPDIR)"/unknown-mod.stderr unknown-mod.stderr