diff --git a/src/ZSOLVER/p_abs.f90 b/src/ZSOLVER/p_abs.f90
index 3b41b15e68fb88d7c47a282f49c6b36a9a1cdb7f..962230cdef3cb516e4c15f18983d6bf2784f7939 100644
--- a/src/ZSOLVER/p_abs.f90
+++ b/src/ZSOLVER/p_abs.f90
@@ -347,7 +347,7 @@ IF ( CEQNSYS=='DUR' .OR. CEQNSYS=='MAE' ) THEN
   END IF
 !
   !
-  !$acc update host(ZMASSGUESS_2D,ZMASS_O_PI_2D,ZWATERMASST_2D)
+  ! acc update host(ZMASSGUESS_2D,ZMASS_O_PI_2D,ZWATERMASST_2D)
   ZMASSGUESS  = SUM_DD_R2_ll_DEVICE(ZMASSGUESS_2D)
   ZMASS_O_PI  = SUM_DD_R2_ll_DEVICE(ZMASS_O_PI_2D)
   ZWATERMASST = SUM_DD_R2_ll_DEVICE(ZWATERMASST_2D)
@@ -409,7 +409,7 @@ IF ( CEQNSYS=='DUR' .OR. CEQNSYS=='MAE' ) THEN
     END DO
   END IF
 !
-  !$acc update host(ZMASSGUESS_2D)
+  ! acc update host(ZMASSGUESS_2D)
   ZMASSGUESS  = SUM_DD_R2_ll_DEVICE(ZMASSGUESS_2D)
   !
   ZPI0 = (PDRYMASST + ZWATERMASST - ZP00_O_RD*ZMASSGUESS ) / ZMASS_O_PI