diff --git a/README.md b/README.md
index 5c3bc56..13b81d3 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 <img src="https://github.com/Noble-Lab/crema/blob/master/docs/_static/crema_logo_caramel_light.png" width=300>  
 
+---
+
 Confidence Estimation for Mass Spectrometry Proteomics
 
 **crema** is a Python package that implements various methods to estimate false discovery rates (FDR) of peptide
diff --git a/crema/__pycache__/params.cpython-37.pyc b/crema/__pycache__/params.cpython-37.pyc
index 31d1152..0136c8c 100644
Binary files a/crema/__pycache__/params.cpython-37.pyc and b/crema/__pycache__/params.cpython-37.pyc differ
diff --git a/tests/test_cli.py b/tests/test_cli.py
index a53abfd..c56bbd9 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -171,7 +171,7 @@ def test_cli_add_spectrum(tmp_path):
     cmd = [
         "crema",
         "data/single_add_spectrum.csv",
-        "--scan",
+        "--spectrum",
         "scan",
         "extras",
         "--output_dir",
diff --git a/tests/test_crema_methods.py b/tests/test_crema_methods.py
index e9d1663..37e492e 100644
--- a/tests/test_crema_methods.py
+++ b/tests/test_crema_methods.py
@@ -148,11 +148,11 @@
             "c",
             "d",
             "e",
-            "f",
-            "g",
-            "h",
-            "i",
-            "j",
+            "z",
+            "b",
+            "y",
+            "d",
+            "x",
         ],
     }
 )