diff --git a/src/cltools/Driver.cpp b/src/cltools/Driver.cpp
index 3448d229f9189d597030e213106bf636f89cd9e6..a7b9e1b68eaf89a43e1e0b9b671fddd8bc28ea73 100644
--- a/src/cltools/Driver.cpp
+++ b/src/cltools/Driver.cpp
@@ -143,7 +143,7 @@ files are referred to the original timestep and any files output resemble those
 had we run the calculation we are running with driver when the MD simulation was running.
 
 PLUMED can read natively xyz files (in PLUMED units) and gro files (in nm). In addition,
-PLUMED includes by default support for a 
+PLUMED includes by default support for a
 subset of the trajectory file formats supported by VMD, e.g. xtc and dcd:
 
 \verbatim