diff --git a/scripts/spack/configs/docker/ubuntu20/spack.yaml b/scripts/spack/configs/docker/ubuntu20/spack.yaml
index 489e4c7ce..01074db61 100644
--- a/scripts/spack/configs/docker/ubuntu20/spack.yaml
+++ b/scripts/spack/configs/docker/ubuntu20/spack.yaml
@@ -9,14 +9,14 @@ spack:
     build_stage::
     - $spack/../build_stage
 
-  compilers::
+  compilers:
   - compiler:
       environment: {}
       extra_rpaths: []
       # Axom example sidre_shocktube_F_ex doesn't link otherwise
       flags:
-        cflags: -fPIC -pthread
-        cxxflags: -fPIC -pthread
+        cflags: -fPIC -fPIE -pthread
+        cxxflags: -fPIC -fPIE -pthread
       modules: []
       operating_system: ubuntu20.04
       paths: