diff --git a/test/functional/high_priority_transaction.py b/test/functional/abc-high_priority_transaction.py
rename from test/functional/high_priority_transaction.py
rename to test/functional/abc-high_priority_transaction.py
diff --git a/test/functional/mempool-accept-txn.py b/test/functional/abc-mempool-accept-txn.py
rename from test/functional/mempool-accept-txn.py
rename to test/functional/abc-mempool-accept-txn.py
diff --git a/test/functional/test_runner.py b/test/functional/test_runner.py
--- a/test/functional/test_runner.py
+++ b/test/functional/test_runner.py
@@ -102,7 +102,6 @@
     'keypool.py',
     'p2p-mempool.py',
     'prioritise_transaction.py',
-    'high_priority_transaction.py',
     'invalidblockrequest.py',
     'invalidtxrequest.py',
     'p2p-versionbits-warning.py',
@@ -118,7 +117,8 @@
     'abc-cmdline.py',
     'abc-p2p-fullblocktest.py',
     'abc-rpc.py',
-    'mempool-accept-txn.py',
+    'abc-high_priority_transaction.py',
+    'abc-mempool-accept-txn.py',
     'wallet-encryption.py',
     'bipdersig-p2p.py',
     'bip65-cltv-p2p.py',