diff --git a/leakcheck/crypto.py b/leakcheck/crypto.py
index c12d8ff..6a9af92 100644
--- a/leakcheck/crypto.py
+++ b/leakcheck/crypto.py
@@ -97,7 +97,7 @@
                 load_privatekey(
                     FILETYPE_PEM, self.ENCRYPTED_PEM,
                     lambda *args: {})
-            except Error:
+            except ValueError:
                 pass