diff --git a/Lib/encodings/__init__.py b/Lib/encodings/__init__.py
index 5e4167b..e312fb8 100644
--- a/Lib/encodings/__init__.py
+++ b/Lib/encodings/__init__.py
@@ -124,5 +124,5 @@
 # Register iconv_codec lookup function if available
 try:
     import iconv_codec
-except ImportError:
+except (ImportError, RuntimeError):
     pass