diff --git a/src/secondarystructure/AlphaRMSD.cpp b/src/secondarystructure/AlphaRMSD.cpp
index 887366bd6df8be11ddc046d45011c11f91337bcc..643f4cb5e24068a7604c8f70866d2d5706412092 100644
--- a/src/secondarystructure/AlphaRMSD.cpp
+++ b/src/secondarystructure/AlphaRMSD.cpp
@@ -73,6 +73,14 @@ MOLINFO STRUCTURE=helix.pdb
 hh: ALPHARMSD RESIDUES=all
 \endplumedfile
 
+Here the same is done use RMSD instead of DRMSD
+
+\plumedfile
+MOLINFO STRUCTURE=helix.pdb
+WHOLEMOLECULES ENTITY0=1-100
+hh: ALPHARMSD RESIDUES=all TYPE=OPTIMAL R_0=0.1
+\endplumedfile
+
 */
 //+ENDPLUMEDOC
 
diff --git a/src/secondarystructure/AntibetaRMSD.cpp b/src/secondarystructure/AntibetaRMSD.cpp
index 50fd34f53e06abdd7109caa3eb84130a7d7e2c95..fe843bd755b33a719a11f37301aba1153a075c46 100644
--- a/src/secondarystructure/AntibetaRMSD.cpp
+++ b/src/secondarystructure/AntibetaRMSD.cpp
@@ -72,9 +72,16 @@ protein that are in an antiparallel beta sheet configuration.
 
 \plumedfile
 MOLINFO STRUCTURE=beta.pdb
-ab: ANTIBETARMSD RESIDUES=all STRANDS_CUTOFF=1 
+ab: ANTIBETARMSD RESIDUES=all STRANDS_CUTOFF=1
 \endplumedfile
 
+Here the same is done use RMSD instead of DRMSD
+
+\plumedfile
+MOLINFO STRUCTURE=helix.pdb
+WHOLEMOLECULES ENTITY0=1-100
+hh: ANTIBETARMSD RESIDUES=all TYPE=OPTIMAL R_0=0.1  STRANDS_CUTOFF=1
+\endplumedfile
 */
 //+ENDPLUMEDOC
 
diff --git a/src/secondarystructure/ParabetaRMSD.cpp b/src/secondarystructure/ParabetaRMSD.cpp
index 77d8e65ee8cd7bdc18b4190b5933c57f386a8d21..4329edd6ee6e70ca9886796536c4b04e0a6ccfe6 100644
--- a/src/secondarystructure/ParabetaRMSD.cpp
+++ b/src/secondarystructure/ParabetaRMSD.cpp
@@ -75,6 +75,14 @@ MOLINFO STRUCTURE=beta.pdb
 pb: PARABETARMSD RESIDUES=all STRANDS_CUTOFF=1
 \endplumedfile
 
+Here the same is done use RMSD instead of DRMSD
+
+\plumedfile
+MOLINFO STRUCTURE=helix.pdb
+WHOLEMOLECULES ENTITY0=1-100
+hh: PARABETARMSD RESIDUES=all TYPE=OPTIMAL R_0=0.1  STRANDS_CUTOFF=1
+\endplumedfile
+
 */
 //+ENDPLUMEDOC