diff --git a/README.md b/README.md
index 6cca0fd..64d21b1 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ Each sub-directory (one per complex) contains the following files:
 * `XXX_l_b-matched.pdb` : Matched bound ligang PDB
 * `XXX_r_u_cg.pdb` : Martini v2 coarse-grain models for the receptor proteins
 * `XXX_l_u_cg.pdb` : Martini v2 coarse-grain models for the ligand proteins
-* `XXX_reference.pdb`: the reference, matched complex
+* `XXX_target.pdb`: the reference, matched complex
 
 And for each PDB there is an associated `.info` file providing statistics of the PDB content