Index: LMDZ5/trunk/libf/phylmd/readaerosol_interp.F90
===================================================================
--- LMDZ5/trunk/libf/phylmd/readaerosol_interp.F90	(revision 2522)
+++ LMDZ5/trunk/libf/phylmd/readaerosol_interp.F90	(revision 2523)
@@ -313,6 +313,6 @@
           ! the second half of the month
           im2=im+1
-          day2 = month_mid(im+1)
-          day1 = month_mid(im2+1)
+          day1 = month_mid(im+1)
+          day2 = month_mid(im2+1)
           IF (im2 > 12) THEN
              ! the month is december, the following thus january
@@ -330,6 +330,6 @@
           ! the second half of the month
           im2=im+1
-          day2 = month_mid(im)
-          day1 = month_mid(im2)
+          day1 = month_mid(im)
+          day2 = month_mid(im2)
        END IF
      ELSE