diff --git a/user-doc/tutorials/belfast-9a.txt b/user-doc/tutorials/belfast-9a.txt
index 75f49cf7d66961cad1922fcb2d954ff7e75e71e3..323dd4589db93355a7aa06c4d5faf273f1c46de4 100644
--- a/user-doc/tutorials/belfast-9a.txt
+++ b/user-doc/tutorials/belfast-9a.txt
@@ -1,5 +1,5 @@
 /**
-\page belfast-9 Belfast tutorial: NMR constraints
+\page belfast-9 Belfast tutorial: NMR restraints 
 
 \section belfast-9-aim Aims
 This tutorial is about the use of experimental data, in particular NMR data, either as collective variables or as replica-averaged
@@ -137,7 +137,7 @@ mpiexec -np 8 gmx_mpi mdrun -s topol -plumed plumed -multi 8
 
 link: @subpage belfast-9
 
-description: NMR constraints
+description: NMR restraints 
 
 additional-files: belfast-9a