diff --git a/pySEQTarget/SEQuential.py b/pySEQTarget/SEQuential.py
index 4815ffd..6ffbcca 100644
--- a/pySEQTarget/SEQuential.py
+++ b/pySEQTarget/SEQuential.py
@@ -342,7 +342,7 @@ def collect(self) -> SEQoutput:
         }
 
         if self.compevent_colname is not None:
-            compevent_models = [model["compevent"] for model in self.outcome_models]
+            compevent_models = [model["compevent"] for model in self.outcome_model]
         else:
             compevent_models = None
 
diff --git a/pyproject.toml b/pyproject.toml
index bf85936..acf55a2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pySEQTarget"
-version = "0.10.3"
+version = "0.10.4"
 description = "Sequentially Nested Target Trial Emulation"
 readme = "README.md"
 license = {text = "MIT"}