Index: firmware/App/Modes/ModeChemicalDisinfect.c
===================================================================
diff -u -ra4669c80291e85fa5ce17d77ebcfd0c882831202 -r98a1a2a624373a1d140daed0136522ab6e635237
--- firmware/App/Modes/ModeChemicalDisinfect.c	(.../ModeChemicalDisinfect.c)	(revision a4669c80291e85fa5ce17d77ebcfd0c882831202)
+++ firmware/App/Modes/ModeChemicalDisinfect.c	(.../ModeChemicalDisinfect.c)	(revision 98a1a2a624373a1d140daed0136522ab6e635237)
@@ -1301,7 +1301,7 @@
 
             // Set the disinfect flags
             setDisinfectStatus( TRUE );
-            setLastDisinfectDate( getRTCTimestamp() );
+            setLastDisinfectDate( USAGE_INFO_CHEMICAL_DISINFECT, getRTCTimestamp() );
             break;
     }