diff --git a/CHANGELOG.md b/CHANGELOG.md
index df45379..5609e66 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+# [2.2.18] - 2023-09-18
+
+- Fix wrong error except
+
 # [2.2.17] - 2023-09-18
 
 - Fix peptides that are too long and their modifcations
diff --git a/deeplc/feat_extractor.py b/deeplc/feat_extractor.py
index 6a6cb93..509964b 100644
--- a/deeplc/feat_extractor.py
+++ b/deeplc/feat_extractor.py
@@ -462,7 +462,7 @@ def rolling_sum(a, n=2):
                 for k, v in position_composition.items():
                     try:
                         matrix[i, dict_index[k]] = v
-                    except warning:
+                    except IndexError:
                         logger.warning(f"Could not add the following value: {v}")
 
             for p in positions_pos:
diff --git a/setup.py b/setup.py
index 48859d5..d4339ad 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@
 
 setup(
     name='deeplc',
-    version='2.2.17',
+    version='2.2.18',
     license='apache-2.0',
     description='DeepLC: Retention time prediction for (modified) peptides using Deep Learning.',
     long_description=LONG_DESCRIPTION,