diff --git a/nameof.py b/nameof.py
index 2df91cf..4873199 100644
--- a/nameof.py
+++ b/nameof.py
@@ -1,7 +1,7 @@
 import inspect
 import ast
 from typing import Any
-
+import os
 
 def nameof(var: Any):
     # Try to extract the argument expression from the caller's source code
@@ -27,6 +27,7 @@ def nameof(var: Any):
                             return arg.attr
               
     except Exception as e:
-        print(e)
+        if os.environ.get("nameof_test") or os.environ.get("nameof_test_debug"):
+            print("Error in nameof function:", e)
     
     raise ValueError("Could not determine variable name. Ensure the variable is defined in the caller's scope.")
\ No newline at end of file
diff --git a/nameof_test.py b/nameof_test.py
index 258533c..9f93725 100644
--- a/nameof_test.py
+++ b/nameof_test.py
@@ -1,3 +1,5 @@
+if True:
+    import os; os.environ["nameof_test"] = "True"
 from nameof import nameof
 import sys