diff --git a/metagenomics/assembly_bins_readstats.py b/metagenomics/assembly_bins_readstats.py
index e861cafb236a029498e44a8a5b6de9e21d1ba82f..68e84ca0eab5c0d0447049d143b73fd5f3400e99 100755
--- a/metagenomics/assembly_bins_readstats.py
+++ b/metagenomics/assembly_bins_readstats.py
@@ -35,9 +35,10 @@ binContigs = set()
 bins = 0
 prev_bin = ""
 for line in open(binContigsFile).readlines():
-    if line.split()[0] != prev_bin: bins+=1
-    binContigs.add(line.strip().split()[1])
-    prev_bin = line.split()[0]
+    if not "unbinned" in line:
+        if line.split()[0] != prev_bin: bins+=1
+        binContigs.add(line.strip().split()[1])    
+        prev_bin = line.split()[0]
 
 total_assembly_size = 0
 mapped_reads = 0