diff --git a/prism/src/prism/PrismCL.java b/prism/src/prism/PrismCL.java
index d25919a9..3036d11e 100644
--- a/prism/src/prism/PrismCL.java
+++ b/prism/src/prism/PrismCL.java
@@ -1779,7 +1779,7 @@ public class PrismCL
 		mainLog.println("-importtrans <file> ............ Import the transition matrix directly from a text file");
 		mainLog.println("-importstates <file>............ Import the list of states directly from a text file");
 		mainLog.println("-importlabels <file>............ Import the list of labels directly from a text file");
-		mainLog.println("-importinitdist <expr>.......... Specify the initial probability distribution for transient analysis");
+		mainLog.println("-importinitdist <file>.......... Specify the initial probability distribution for transient analysis");
 		mainLog.println("-dtmc .......................... Force imported/built model to be a DTMC");
 		mainLog.println("-ctmc .......................... Force imported/built model to be a CTMC");
 		mainLog.println("-mdp ........................... Force imported/built model to be an MDP");