diff --git a/doc/src/fix_neb.rst b/doc/src/fix_neb.rst
index 8e9ba3939c..4d0d301540 100644
--- a/doc/src/fix_neb.rst
+++ b/doc/src/fix_neb.rst
@@ -126,7 +126,7 @@ Note that the *ideal* form of nudging can often be more effective at
 keeping the replicas equally spaced.
 
 With a value of *equal* the spring force is computed as for *ideal*
-before the climbing stage, then is computed to promote equidistant 
+before the climbing stage, then is computed to promote equidistant
 spacing in energy rather than distance:
 
 .. math::
diff --git a/doc/src/neb.rst b/doc/src/neb.rst
index 33c9ac8c27..4703cc7f60 100644
--- a/doc/src/neb.rst
+++ b/doc/src/neb.rst
@@ -350,9 +350,9 @@ ReplicaForce is the two-norm of the 3N-length force vector (including
 nudging forces) for replica *i*.  MaxAtomForce is the maximum force
 component of any atom in replica *i*.
 
-Alternatively, a restricted print out can be obtained by adding the 
+Alternatively, a restricted print out can be obtained by adding the
 *terse* keyword, which omits per-replica information. This typically
-fits on one line of a command terminal, aiding visual inspection of 
+fits on one line of a command terminal, aiding visual inspection of
 an ongoing NEB calculation.
 
 When a NEB calculation does not converge properly, the supplementary