diff --git a/impedance/models/circuits/elements.py b/impedance/models/circuits/elements.py
index 9bb860e..dc520a9 100644
--- a/impedance/models/circuits/elements.py
+++ b/impedance/models/circuits/elements.py
@@ -345,6 +345,7 @@ def T(p, f):
     .. math::
 
         Z = A\\frac{\\coth{\\beta}}{\\beta} + B\\frac{1}{\\beta\\sinh{\\beta}}
+        + \\frac{B}{2}
 
     where
 
@@ -377,7 +378,7 @@ def T(p, f):
         else:
             sinh.append(1e10)
 
-    Z = A / (beta * np.tanh(beta)) + B / (beta * np.array(sinh))
+    Z = A / (beta * np.tanh(beta)) + B / (beta * np.array(sinh)) + B / 2
     return Z
 
 
diff --git a/impedance/tests/test_circuit_elements.py b/impedance/tests/test_circuit_elements.py
index c481f5b..b7aa086 100644
--- a/impedance/tests/test_circuit_elements.py
+++ b/impedance/tests/test_circuit_elements.py
@@ -59,9 +59,9 @@ def test_each_element():
             (0.35594139 - 0.16491599j),
         ],
         "T": [
-            (1.00041 - 0.00837309j),
-            (0.0156037 - 0.114062j),
-            (0.00141056 - 0.00141039j),
+            (1.10041251-0.00837309j),
+            (0.11560368-0.11406217j),
+            (0.10141056-0.00141039j),
         ],
         "K": [
             (0.099999842086579 - 0.000125663507704j),