diff --git a/manticore/platforms/evm.py b/manticore/platforms/evm.py
index 8d85870125..1b82ac99ed 100644
--- a/manticore/platforms/evm.py
+++ b/manticore/platforms/evm.py
@@ -310,7 +310,7 @@ def sort(self):
     @sort.setter
     def sort(self, sort):
         if sort not in {"CREATE", "CALL", "DELEGATECALL"}:
-            raise EVMException("Invalid transaction type")
+            raise EVMException(f"Invalid transaction type: {sort}")
         self._sort = sort
 
     @property