diff --git a/modules/29_CES_parameters/calibrate/preloop.gms b/modules/29_CES_parameters/calibrate/preloop.gms
index f69e0b30d..5542296d0 100644
--- a/modules/29_CES_parameters/calibrate/preloop.gms
+++ b/modules/29_CES_parameters/calibrate/preloop.gms
@@ -356,8 +356,8 @@ loop (ttot$( ttot.val ge 2005 AND ttot.val lt 2020),
 loop (ttot$( ttot.val ge 2005),
   pm_cesdata(ttot,regi_dyn29(regi),in_29,"price")$( ppf_29(in_29) AND (NOT sameas(in_29,"entrp_frgt_lo")) )
   = max(
-    ( 1e-2$( NOT in_industry_dyn37(in_29) )
-    + 1e-4$(     in_industry_dyn37(in_29) )
+    ( 1e-2$( NOT (in_buildings_dyn36(in_29) OR in_industry_dyn37(in_29)) )
+    + 1e-4$(     (in_buildings_dyn36(in_29) OR in_industry_dyn37(in_29)) )
     ),
     pm_cesdata(ttot,regi,in_29,"price")
   );