diff --git a/conf/real-from-ideal/proj.yaml b/conf/real-from-ideal/proj.yaml
index eaf50912482ee5beadaf0e91ad9b1d2f163b3041..6433f9a6be42bfebaff1139a97bb7c0dfc9b7ccb 100644
--- a/conf/real-from-ideal/proj.yaml
+++ b/conf/real-from-ideal/proj.yaml
@@ -11,7 +11,7 @@ spack:
   disable_local_config: true # if false, spack install into home folder
 
 icon:
-  spack_cmd: "icon-nwp@%icon.version% ^openmpi+pmi+legacylaunchers schedulers=slurm fabrics=ucx ucx+dc+dm+ib_hw_tm+mlx5_dv+rc+rdmacm+thread_multiple+ud+verbs ^gettext@0.20.2 ^%spack.compiler%"
+  spack_cmd: "icon-nwp@%ICON.VERSION% ^openmpi+pmi+legacylaunchers schedulers=slurm fabrics=ucx ucx+dc+dm+ib_hw_tm+mlx5_dv+rc+rdmacm+thread_multiple+ud+verbs ^gettext@0.20.2 ^%SPACK.COMPILER%"
   version: 2.6.5-nwp0
 
 python_environment: