diff --git a/.travis.yml b/.travis.yml
index db6f7adcd98d7b8a02fa326f4cb6909e90997455..6cd8d7af1f14d0468204910f50fc525f638fa259 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -174,7 +174,7 @@ script:
 # build using macports
   - if test -n "$PLUMED_MACPORTS" ; then
       sudo port -N -k install $PLUMED_MACPORTS ;
-      plumed config show
+      plumed config show ;
       ./macports-ci ccache --save ;
     fi