diff --git a/geant4/LEMuSR/run/1050.mac b/geant4/LEMuSR/run/1050.mac
index e8fd7dd..266072e 100644
--- a/geant4/LEMuSR/run/1050.mac
+++ b/geant4/LEMuSR/run/1050.mac
@@ -544,8 +544,8 @@
 
 # RANDOM option choices: (specify the random number generator initialisation)
 # 0 ... no initialisation (default)
-# 1 ... use actual computer time to initialise now
-# 2 ... use event number to initialise at the beginning of each event
+# 1 ... use actual computer time to initialise now                    # Pseudo-random numbers
+# 2 ... use event number to initialise at the beginning of each event # Reproducible numbers
 # 3 ... read in the random no. initial values for each event from a file
 /lem4/run/randomOption 2