diff --git a/env/rhel7/x86_64/admin/stable/spack.yaml b/env/rhel7/x86_64/admin/stable/spack.yaml
index bfae444..bc62a7b 100644
--- a/env/rhel7/x86_64/admin/stable/spack.yaml
+++ b/env/rhel7/x86_64/admin/stable/spack.yaml
@@ -16,4 +16,5 @@ spack:
   mirrors:
     local_stable: file:///afs/psi.ch/software/spack/stable
     local_unstable: file:///afs/psi.ch/software/spack/unstable
+  specs: []
   view: false
diff --git a/env/rhel7/x86_64/admin/unstable/spack.yaml b/env/rhel7/x86_64/admin/unstable/spack.yaml
index c315617..a68c93e 100644
--- a/env/rhel7/x86_64/admin/unstable/spack.yaml
+++ b/env/rhel7/x86_64/admin/unstable/spack.yaml
@@ -20,4 +20,5 @@ spack:
     local_stable: file:///afs/psi.ch/software/spack/stable
     local_unstable: file:///afs/psi.ch/software/spack/unstable
     local_testing: file:///afs/psi.ch/software/spack/testing
+  specs: []
   view: false
diff --git a/env/sles15/x86_64/admin/stable/spack.yaml b/env/sles15/x86_64/admin/stable/spack.yaml
index bfae444..bc62a7b 100644
--- a/env/sles15/x86_64/admin/stable/spack.yaml
+++ b/env/sles15/x86_64/admin/stable/spack.yaml
@@ -16,4 +16,5 @@ spack:
   mirrors:
     local_stable: file:///afs/psi.ch/software/spack/stable
     local_unstable: file:///afs/psi.ch/software/spack/unstable
+  specs: []
   view: false
diff --git a/env/sles15/x86_64/admin/unstable/spack.yaml b/env/sles15/x86_64/admin/unstable/spack.yaml
index 250f7cc..db89b27 100644
--- a/env/sles15/x86_64/admin/unstable/spack.yaml
+++ b/env/sles15/x86_64/admin/unstable/spack.yaml
@@ -19,4 +19,5 @@ spack:
     local_stable: file:///afs/psi.ch/software/spack/stable
     local_unstable: file:///afs/psi.ch/software/spack/unstable
     local_testing: file:///afs/psi.ch/software/spack/testing
+  specs: []
   view: false