diff --git a/src/rich_at.py b/src/rich_at.py
index 5faf74d..738e9ac 100644
--- a/src/rich_at.py
+++ b/src/rich_at.py
@@ -47,7 +47,7 @@
 
 # Abrimos el archivo y extraemos su contenido
 with open(args.file, "r") as seq_file:
-    dna = seq_file.read().upper()
+    dna = seq_file.read().rstrip('\n').upper()
 
 def evaluate(dna):
     '''
@@ -95,4 +95,4 @@ def find_regions(dna, at=2):
     if args.search:
         ans = find_regions(dna,args.search)
     else:
-        ans = find_regions(dna)
\ No newline at end of file
+        ans = find_regions(dna)