diff --git a/spack_repo/packages/icon-nwp/package.py b/spack_repo/packages/icon-nwp/package.py
index 95de07b3764c449e3a522033013353b23f4c03ef..5cd7c9456d73694651fc98173b00b3b05ccf9462 100644
--- a/spack_repo/packages/icon-nwp/package.py
+++ b/spack_repo/packages/icon-nwp/package.py
@@ -24,6 +24,7 @@ class IconNwp(Package):
     version("2.6.4-nwp3", branch="icon-nwp/op-release-2.6.4-nwp3")
     version("2.6.5-nwp0", branch="icon-nwp/op-release-2.6.5-nwp0")
     version("psp", branch="icon-nwp/icon-nwp-psp-b3")
+    version("psp-or", branch="icon-nwp/icon-nwp-psp-or")
     version("plexrt", branch="icon-nwp/icon-nwp-plexrt")
     version("master", branch="master")