diff --git a/source/qdk_package/qdk/qre/interop/_cirq.py b/source/qdk_package/qdk/qre/interop/_cirq.py
index 8665d8252a..c196aec7b1 100644
--- a/source/qdk_package/qdk/qre/interop/_cirq.py
+++ b/source/qdk_package/qdk/qre/interop/_cirq.py
@@ -621,7 +621,7 @@ def _allocate_qid(self, name: str, dim: int) -> cirq.Qid:
         """Allocates single qubit."""
         return TypedQubit(super()._allocate_qid(name, dim), self.qubit_type)
 
-    def qalloc(self, n: int, dim: int) -> list[cirq.Qid]:
+    def qalloc(self, n: int, dim: int = 2) -> list[cirq.Qid]:
         """Allocate ``n`` qubits and update the usage counters."""
         qs = super().qalloc(n, dim)
         self.current_in_use += len(qs)
@@ -666,7 +666,7 @@ def __init__(self, prefix: str, *, size: int, maximize_reuse: bool):
         }
 
     def qalloc(
-        self, n: int, dim: int, qubit_type: QubitType = QubitType.COMPUTE
+        self, n: int, dim: int = 2, qubit_type: QubitType = QubitType.COMPUTE
     ) -> list[cirq.Qid]:
         """Allocate ``n`` qubits and update the usage counters.