diff --git a/prism/src/prism/Modules2MTBDD.java b/prism/src/prism/Modules2MTBDD.java
index 14beb336..e3de9d33 100644
--- a/prism/src/prism/Modules2MTBDD.java
+++ b/prism/src/prism/Modules2MTBDD.java
@@ -879,8 +879,8 @@ public class Modules2MTBDD
 				break;
 			case DTMC:
 			case CTMC:
+				// not implemented yet
 				// TODO: base on code for transInd and transSynch above
-				throw new PrismException("Not implemented yet");
 			}
 		}