diff --git a/src/backend/utils/adt/jsonb.c b/src/backend/utils/adt/jsonb.c
index e689722..b82bde0 100644
*** a/src/backend/utils/adt/jsonb.c
--- b/src/backend/utils/adt/jsonb.c
*************** jsonb_agg_transfn(PG_FUNCTION_ARGS)
*** 1606,1612 ****
  
  	memset(&elem, 0, sizeof(JsonbInState));
  
! 	datum_to_jsonb(val, false, &elem, tcategory, outfuncoid, false);
  
  	jbelem = JsonbValueToJsonb(elem.res);
  
--- 1606,1612 ----
  
  	memset(&elem, 0, sizeof(JsonbInState));
  
! 	datum_to_jsonb(val, PG_ARGISNULL(1), &elem, tcategory, outfuncoid, false);
  
  	jbelem = JsonbValueToJsonb(elem.res);
  
*************** jsonb_object_agg_transfn(PG_FUNCTION_ARG
*** 1759,1765 ****
  
  	memset(&elem, 0, sizeof(JsonbInState));
  
! 	datum_to_jsonb(val, false, &elem, tcategory, outfuncoid, true);
  
  	jbkey = JsonbValueToJsonb(elem.res);
  
--- 1759,1765 ----
  
  	memset(&elem, 0, sizeof(JsonbInState));
  
! 	datum_to_jsonb(val, PG_ARGISNULL(1), &elem, tcategory, outfuncoid, true);
  
  	jbkey = JsonbValueToJsonb(elem.res);
  
*************** jsonb_object_agg_transfn(PG_FUNCTION_ARG
*** 1777,1783 ****
  
  	memset(&elem, 0, sizeof(JsonbInState));
  
! 	datum_to_jsonb(val, false, &elem, tcategory, outfuncoid, false);
  
  	jbval = JsonbValueToJsonb(elem.res);
  
--- 1777,1783 ----
  
  	memset(&elem, 0, sizeof(JsonbInState));
  
! 	datum_to_jsonb(val, PG_ARGISNULL(2), &elem, tcategory, outfuncoid, false);
  
  	jbval = JsonbValueToJsonb(elem.res);