diff --git a/barrOs_library.py b/barrOs_library.py
index 07a1c901d31d6bab0a3712d73bce063a983bfb82..05dde8efb3f1454be8937a36e9cea1c45986c77d 100644
--- a/barrOs_library.py
+++ b/barrOs_library.py
@@ -2283,12 +2283,16 @@ def run_barros(arguments, offset = 1, step = 2, local_angle_threshold = 25, dist
             isfile = True
             pdb_file = pdbID
             chains_inpdb = get_chains_in_pdb(pdb_file, source_pdb=False)[0]
-            try:
-                pdbID, chainID = pdb_file[:-4].split('/')[-1].split('_')
-            except:
-                pdbID, chainID = pdb_file[:-4], chains_inpdb[0]
-            if len(pdbID) > 4:
-                pdbID, chainID = pdb_file[:-4], chains_inpdb[0]
+
+            if 'AF-' in pdbID:
+                pdbID, chainID = pdb_file, chains_inpdb[0]
+            else:
+                try:
+                    pdbID, chainID = pdb_file[:-4].split('/')[-1].split('_')
+                except:
+                    pdbID, chainID = pdb_file[:-4], chains_inpdb[0]
+                if len(pdbID) > 4:
+                    pdbID, chainID = pdb_file[:-4], chains_inpdb[0]
 
             # check if this is a OPM structure
             membrane_thickness = parse_membrane_thickness_from_OMP(pdb_file)