diff --git a/examples/ELASTIC_T/in.elastic b/examples/ELASTIC_T/in.elastic
index 8427192a8206e54f0fd1ba7216cc46c99c144d60..7d180f811426af485636f97c328fa1c979facc2a 100644
--- a/examples/ELASTIC_T/in.elastic
+++ b/examples/ELASTIC_T/in.elastic
@@ -1,5 +1,12 @@
 # Compute elastic constant tensor for a crystal at finite temperature
 #
+# WARNING: This script attempts to measure small differences in 
+# statistical averages generated by finite temperature MD simulations. 
+# This creates many more opportunities for errors to occur, compared 
+# to the zero temperature version provided in examples/ELASTIC.
+# Hence, it is always a good idea to start with the zero temperature
+# calculation, before attempting to use this script.
+#
 # Written by Aidan Thompson (Sandia, athomps@sandia.gov)
 #
 #  This script uses the following three include files.