diff --git a/mk/tests.mk b/mk/tests.mk
index 2161a53bb23..f7824304680 100644
--- a/mk/tests.mk
+++ b/mk/tests.mk
@@ -199,14 +199,11 @@ check-fast: check-lite
 
 # Some less critical tests that are not prone to breakage.
 # Not run as part of the normal test suite, but tested by bors on checkin.
-check-secondary: check-syntax check-pretty
+check-secondary: check-lexer check-pretty
 
 # check + check-secondary.
 check-all: check check-secondary
 
-# Run the grammar tests.
-check-syntax: check-lexer
-
 # Pretty-printing tests.
 check-pretty: check-stage2-T-$(CFG_BUILD)-H-$(CFG_BUILD)-pretty-exec