diff --git a/apptainer/petsc.def b/apptainer/petsc.def
index ffacf3ad5b13..3940e32b7d2b 100644
--- a/apptainer/petsc.def
+++ b/apptainer/petsc.def
@@ -70,7 +70,6 @@ From: {{ APPTAINER_FROM }}
         export OMPI_ALLOW_RUN_AS_ROOT=1
         export OMPI_ALLOW_RUN_AS_ROOT_CONFIRM=1
     fi
-    export PMIX_MCA_pcompress_base_silence_warning=1
 {%- endif %}
 
     # Test PETSc