diff --git a/regtest/secondarystructure/rt-coverage-antibetarmsd/colvar.reference b/regtest/secondarystructure/rt-coverage-antibetarmsd/colvar.reference
index 2e093c7e02..8224042792 100644
--- a/regtest/secondarystructure/rt-coverage-antibetarmsd/colvar.reference
+++ b/regtest/secondarystructure/rt-coverage-antibetarmsd/colvar.reference
@@ -1,4 +1,4 @@
-#! FIELDS time b.lessthan brf.lessthan br.lessthan p.lessthan prf.lessthan pr.lessthan sum
+#! FIELDS time b_lessthan brf_lessthan br_lessthan p_lessthan prf_lessthan pr_lessthan sum
  0.000000   0.0607   0.1654   0.1654   0.2681   0.1425   0.1425   0.3287
  0.050000   0.0000  42.5600  42.5600  14.6579   4.1424   4.1424  14.6579
  0.100000   0.0188  34.0262  34.0262  13.0049   3.2851   3.2851  13.0238
diff --git a/regtest/secondarystructure/rt-coverage-antibetarmsd/forces.reference b/regtest/secondarystructure/rt-coverage-antibetarmsd/forces.reference
index cbb160398c..27c89ca644 100644
--- a/regtest/secondarystructure/rt-coverage-antibetarmsd/forces.reference
+++ b/regtest/secondarystructure/rt-coverage-antibetarmsd/forces.reference
@@ -1,4 +1,4 @@
-#! FIELDS time b.lessthan brf.lessthan br.lessthan p.lessthan prf.lessthan pr.lessthan sum @8.bias @8.force2
+#! FIELDS time b_lessthan brf_lessthan br_lessthan p_lessthan prf_lessthan pr_lessthan sum r.bias r.force2
  0.000000   -0.3893763023   -0.1653910914   -0.1653910914   -0.5967893540   -0.1425260828   -0.1425260828   -0.3287218854    0.0000000000    0.0000000000
  0.050000  -14.6578542139  -42.5600014141  -42.5600014141  -29.3157084279   -4.1424316083   -4.1424316083  -14.6578542139    0.0000000000    0.0000000000
  0.100000  -13.0426114706  -34.0261914601  -34.0261914601  -26.0287209912   -3.2850812434   -3.2850812434  -13.0237774873    0.0000000000    0.0000000000
diff --git a/regtest/secondarystructure/rt-coverage-antibetarmsd/plumed.dat b/regtest/secondarystructure/rt-coverage-antibetarmsd/plumed.dat
index 4fc2b04fd5..1985091b07 100644
--- a/regtest/secondarystructure/rt-coverage-antibetarmsd/plumed.dat
+++ b/regtest/secondarystructure/rt-coverage-antibetarmsd/plumed.dat
@@ -7,9 +7,9 @@ PARABETARMSD RESIDUES=all TYPE=OPTIMAL-FAST STRANDS_CUTOFF=1.0 LESS_THAN={RATION
 PARABETARMSD RESIDUES=all TYPE=OPTIMAL STRANDS_CUTOFF=1.0 LESS_THAN={RATIONAL R_0=0.1 NN=8 MM=12 NOSTRETCH} LABEL=pr
 COMBINE ARG=b.lessthan,p.lessthan PERIODIC=NO LABEL=sum 
 
-RESTRAINT ARG=b.*,brf.*,br.*,p.*,prf.*,pr.*,sum KAPPA=1.,1.,1.,1,1,1,1 AT=0,0,0,0,0,0,0 SLOPE=0,0,0,0,0,0,0
+r: RESTRAINT ARG=b.*,brf.*,br.*,p.*,prf.*,pr.*,sum KAPPA=1.,1.,1.,1,1,1,1 AT=0,0,0,0,0,0,0 SLOPE=0,0,0,0,0,0,0
 
-DUMPFORCES ARG=* FILE=forces STRIDE=1
+DUMPFORCES ARG=b.*,brf.*,br.*,p.*,prf.*,pr.*,sum,r.* FILE=forces STRIDE=1
 
 PRINT ARG=b.*,brf.*,br.*,p.*,prf.*,pr.*,sum STRIDE=1 FILE=colvar FMT=%8.4f