diff --git a/base/Dockerfile b/base/Dockerfile
index 32feda0..c75933d 100644
--- a/base/Dockerfile
+++ b/base/Dockerfile
@@ -2,6 +2,9 @@
 FROM alpine:edge
 USER root
 
+# Exempt from image pruning
+LABEL prune="do_not_delete"
+
 # Build ARG for additional packages to install (eg, openssh)
 ARG addpkg