diff --git a/qualtran/bloqs/arithmetic_test.py b/qualtran/bloqs/arithmetic_test.py
index 45d5e6180..d543c6d46 100644
--- a/qualtran/bloqs/arithmetic_test.py
+++ b/qualtran/bloqs/arithmetic_test.py
@@ -173,7 +173,7 @@ def test_greater_than():
     q0 = bb.add_register('a', bitsize)
     q1 = bb.add_register('b', bitsize)
     anc = bb.add_register('result', 1)
-    q0, q1, anc = bb.add(GreaterThan(bitsize), a=q0, b=q1, result=anc)
+    q0, q1, anc = bb.add(GreaterThan(bitsize), a=q0, b=q1, target=anc)
     cbloq = bb.finalize(a=q0, b=q1, result=anc)
 
 
@@ -182,7 +182,7 @@ def test_greater_than_constant():
     bitsize = 5
     q0 = bb.add_register('x', bitsize)
     anc = bb.add_register('result', 1)
-    q0, anc = bb.add(GreaterThanConstant(bitsize, 17), x=q0, result=anc)
+    q0, anc = bb.add(GreaterThanConstant(bitsize, 17), x=q0, target=anc)
     cbloq = bb.finalize(x=q0, result=anc)
 
 
@@ -191,7 +191,7 @@ def test_equals_a_constant():
     bitsize = 5
     q0 = bb.add_register('x', bitsize)
     anc = bb.add_register('result', 1)
-    q0, anc = bb.add(EqualsAConstant(bitsize, 17), x=q0, result=anc)
+    q0, anc = bb.add(EqualsAConstant(bitsize, 17), x=q0, target=anc)
     cbloq = bb.finalize(x=q0, result=anc)