diff --git a/Chapter2_MorePyMC/Ch2_MorePyMC_PyMC3.ipynb b/Chapter2_MorePyMC/Ch2_MorePyMC_PyMC3.ipynb
index de97125b..3b99584b 100644
--- a/Chapter2_MorePyMC/Ch2_MorePyMC_PyMC3.ipynb
+++ b/Chapter2_MorePyMC/Ch2_MorePyMC_PyMC3.ipynb
@@ -273,7 +273,7 @@
     "\n",
     "    deterministic_variable = pm.Deterministic(\"deterministic variable\", some_function_of_variables)\n",
     "\n",
-    "For all purposes, we can treat the object `some_deterministic_var` as a variable and not a Python function. \n",
+    "For all purposes, we can treat the object `deterministic_variable` as a variable and not a Python function. \n",
     "\n",
     "Calling `pymc3.Deterministic` is the most obvious way, but not the only way, to create deterministic variables. Elementary operations, like addition, exponentials etc. implicitly create deterministic variables. For example, the following returns a deterministic variable:"
    ]