diff --git a/test/functional/feature_signet.py b/test/functional/feature_signet.py
index b648266caeb..a29967a9277 100755
--- a/test/functional/feature_signet.py
+++ b/test/functional/feature_signet.py
@@ -5,6 +5,7 @@
 """Test basic signet functionality"""
 
 from decimal import Decimal
+from os import path
 
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal
@@ -73,6 +74,12 @@ class SignetBasicTest(BitcoinTestFramework):
 
         assert_equal(self.nodes[4].submitblock(signet_blocks[0]), 'bad-signet-blksig')
 
+        self.log.info("Test that the signet data directory with -signetchallenge=51 is 'signet_da1745e9'")
+        assert_equal(path.basename(self.nodes[0].chain_path), "signet_da1745e9")
+
+        self.log.info("Test that the main signet data directory is 'signet'")
+        assert_equal(path.basename(self.nodes[3].chain_path), "signet")
+
         self.log.info("test that signet logs the network magic on node start")
         with self.nodes[0].assert_debug_log(["Signet derived magic (message start)"]):
             self.restart_node(0)