diff --git a/src/cltools/Driver.cpp b/src/cltools/Driver.cpp
index cd27611d57d1e42ea333186053bc9fdc06bd3da7..59f389cbb3ff5a0dec92c42d3405bedb57266232 100644
--- a/src/cltools/Driver.cpp
+++ b/src/cltools/Driver.cpp
@@ -183,8 +183,8 @@ void Driver<real>::registerKeywords( Keywords& keys ){
   keys.add("atoms","--ixyz","the trajectory in xyz format");
   keys.add("atoms","--igro","the trajectory in gro format");
 #ifdef __PLUMED_HAS_XDRFILE
-  keys.add("atoms","--ixtc","the trajectory in xtc format (xdrfile implementation");
-  keys.add("atoms","--itrr","the trajectory in trr format (xdrfile implementation");
+  keys.add("atoms","--ixtc","the trajectory in xtc format (xdrfile implementation)");
+  keys.add("atoms","--itrr","the trajectory in trr format (xdrfile implementation)");
 #endif
   keys.add("optional","--length-units","units for length, either as a string or a number");
   keys.add("optional","--dump-forces","dump the forces on a file");