Index: firmware/App/Modes/ModeFill.c
===================================================================
diff -u -r4ca9ae0989215af5b543637dc4b435f8b38480d2 -r77cf960846ef93d74fec68572fa596bf1f24bdc3
--- firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision 4ca9ae0989215af5b543637dc4b435f8b38480d2)
+++ firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision 77cf960846ef93d74fec68572fa596bf1f24bdc3)
@@ -627,7 +627,7 @@
         {
             result = DG_FILL_MODE_STATE_PRIME_CONCENTRATE_LINES;
 
-            if ( TRUE == getTestConfigStatus( TEST_CONFIG_MIX_WITH_WATER ) )
+            if ( TRUE == getTestConfigStatus( TEST_CONFIG_EXPEDITE_PRE_TREATMENT ) )
             {
                 // If expedite pre-treatment flag is enabled, do not do the initial fill
                 result = DG_FILL_MODE_STATE_PRODUCE_DIALYSATE;