diff --git a/bin/tests/system/isctest/vars/algorithms.py b/bin/tests/system/isctest/vars/algorithms.py
index ac8605896a..63b574965f 100644
--- a/bin/tests/system/isctest/vars/algorithms.py
+++ b/bin/tests/system/isctest/vars/algorithms.py
@@ -82,6 +82,7 @@ class AlgorithmSet(NamedTuple):
 
 
 RSASHA1 = Algorithm("RSASHA1", 5, 2048)
+NSEC3RSASHA1 = Algorithm("NSEC3RSASHA1", 7, 2048)
 RSASHA256 = Algorithm("RSASHA256", 8, 2048)
 RSASHA512 = Algorithm("RSASHA512", 10, 2048)
 ECDSAP256SHA256 = Algorithm("ECDSAP256SHA256", 13, 256)
@@ -91,6 +92,7 @@ ED448 = Algorithm("ED448", 16, 456)
 
 ALL_ALGORITHMS = [
     RSASHA1,
+    NSEC3RSASHA1,
     RSASHA256,
     RSASHA512,
     ECDSAP256SHA256,