diff --git a/CHANGES.md b/CHANGES.md
index 37588c0..63ef091 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,7 +2,7 @@
 ## 2.4.9 (unreleased)
 
 
-- Nothing changed yet.
+- Fix `PurgePackage` raising error when package is not found.
 
 
 ## 2.4.8 (2024-05-08)
diff --git a/src/batou_ext/nix.py b/src/batou_ext/nix.py
index 0c4e13a..742c334 100644
--- a/src/batou_ext/nix.py
+++ b/src/batou_ext/nix.py
@@ -95,7 +95,7 @@ def verify(self):
             self.cmd(f"nix-env --query {self.package}")
             raise batou.UpdateNeeded()
         except batou.utils.CmdExecutionError as e:
-            if e.stderr.endswith("matches no derivations"):
+            if e.stderr.strip().endswith("matches no derivations"):
                 batou.output.annotate(
                     f"Could not find package to purge: {self.package}",
                     yellow=True,