diff --git a/env/sles15/x86_64/admin/stable/spack.yaml b/env/sles15/x86_64/admin/stable/spack.yaml
index 5f8197c..debca59 100644
--- a/env/sles15/x86_64/admin/stable/spack.yaml
+++ b/env/sles15/x86_64/admin/stable/spack.yaml
@@ -6,7 +6,7 @@ spack:
     build_stage:
       - $spack/user/$user/spack-stage
     install_tree:
-      root: $spack/opt/spack/$env
+      root: $spack/opt/spack/stable
     include:
     - $spack/spack-psi/env/$os/$target_family/sysconfigs/packages.yaml
     - $spack/spack-psi/env/$os/$target_family/sysconfigs/compilers.yaml
diff --git a/env/sles15/x86_64/admin/testing/spack.yaml b/env/sles15/x86_64/admin/testing/spack.yaml
index 2c6928d..2454bd1 100644
--- a/env/sles15/x86_64/admin/testing/spack.yaml
+++ b/env/sles15/x86_64/admin/testing/spack.yaml
@@ -6,7 +6,7 @@ spack:
     build_stage:
       - $spack/user/$user/spack-stage
     install_tree:
-      root: $spack/opt/spack/$env
+      root: $spack/opt/spack/testing
     upstreams:
       spack-instance-1:
         install_tree: $spack/opt/spack/stable