diff --git a/test/presubmit-link-check.sh b/test/presubmit-link-check.sh
index ce409429c..9ec756c2b 100755
--- a/test/presubmit-link-check.sh
+++ b/test/presubmit-link-check.sh
@@ -18,9 +18,6 @@
 # It is started by prow for each PR.
 # For convenience, it can also be executed manually.
 
-# Force presubmit link checking only.
-DISABLE_MD_LINTING=1
-
 source $(dirname $0)/../vendor/knative.dev/hack/presubmit-tests.sh
 
 initialize_environment
diff --git a/test/presubmit-tests.sh b/test/presubmit-tests.sh
index 2a57f9f13..beda08381 100755
--- a/test/presubmit-tests.sh
+++ b/test/presubmit-tests.sh
@@ -18,10 +18,6 @@
 # It is started by prow for each PR.
 # For convenience, it can also be executed manually.
 
-# markdown linting is too picky for our docs; disabling it for now.
-DISABLE_MD_LINTING=1
-DISABLE_MD_LINK_CHECK=1
-
 source $(dirname $0)/../vendor/knative.dev/hack/presubmit-tests.sh
 
 # We use the default build, unit and integration test runners.