diff --git a/examples/simple/basefiles/mk-basefile b/examples/simple/basefiles/mk-basefile
index 6fc86ecf0..591a87836 100755
--- a/examples/simple/basefiles/mk-basefile
+++ b/examples/simple/basefiles/mk-basefile
@@ -219,6 +219,7 @@ unknown() {
     CENTOS7_32   CENTOS7_64
     SLC5_32      SLC5_64
     SLC6_32      SLC6_64
+                 SLC7_64
     TRUSTY32     TRUSTY64
     XENIAL32     XENIAL64
     SQUEEZE32    SQUEEZE64