Index: trunk/Mars/hawc/callisto.C
===================================================================
--- trunk/Mars/hawc/callisto.C	(revision 19824)
+++ trunk/Mars/hawc/callisto.C	(revision 19825)
@@ -258,5 +258,5 @@
 
     // Instantiate histograms to display charges
-    MHCamEvent evt5b(0, "ExtSig",   "Extracted signal;;S [mV·sl]");
+    MHCamEvent evt5b(0, "ExtSig",   "Extracted signal;;S [mV#cdot sl]");
     MHCamEvent evt5c(0, "CalSig",   "Calibrated and interpolated signal;;S [~phe]");
     MHCamEvent evt5d(4, "ExtSigTm", "Extracted time;;T [sl]");