diff --git a/src/Rules.LXifort.mk b/src/Rules.LXifort.mk
index 902023b0d45ee93f992e9cf2e7b403640a6cce1e..7788bb031c9099d7b1d70a95e0d8a684ffc0f6cd 100644
--- a/src/Rules.LXifort.mk
+++ b/src/Rules.LXifort.mk
@@ -241,7 +241,8 @@ include Makefile.MESONH.mk
 # Juan & Maud 20/03/2008 --> Ifort 10.1.008 Bug O2 optimization
 ifneq "$(OPTLEVEL)" "DEBUG"
 OPT_PERF1  =  -O1 
-OBJS_O1= spll_mode_snow3l.o spll_schu.o spll_ps2str.o spll_p_abs.o spll_ini_one_way_n.o spll_urban_solar_abs.o spll_aeroopt_get.o spll_ch_get_rates.o
+OBJS_O1= spll_mode_snow3l.o spll_schu.o spll_ps2str.o spll_p_abs.o spll_ini_one_way_n.o spll_urban_solar_abs.o spll_aeroopt_get.o spll_ch_get_rates.o \
+         spll_ini_aeroset1.o spll_ini_aeroset2.o spll_ini_aeroset3.o spll_ini_aeroset4.o spll_ini_aeroset5.o spll_ini_aeroset6.o
 $(OBJS_O1) : OPT = $(OPT_BASE) $(OPT_PERF1)
 endif