diff --git a/namelists/real-from-ideal/icon_atmosphere_real.namelist b/namelists/real-from-ideal/icon_atmosphere_real.namelist
index 98dd2f88aeba806711f63474656d5cd0d080a36b..35be207e602d6306b5c5db74d9588fed9378bc8e 100644
--- a/namelists/real-from-ideal/icon_atmosphere_real.namelist
+++ b/namelists/real-from-ideal/icon_atmosphere_real.namelist
@@ -68,3 +68,7 @@
 &io_nml
     dt_checkpoint = '%checkpoint_time%'
 /
+
+&nwp_phy_nml
+    lupatmo_phy = .FALSE.
+/
\ No newline at end of file