Index: src/uk/me/parabola/mkgmap/CommandArgsReader.java
===================================================================
--- src/uk/me/parabola/mkgmap/CommandArgsReader.java	(revision 4606)
+++ src/uk/me/parabola/mkgmap/CommandArgsReader.java	(working copy)
@@ -241,8 +241,8 @@
 		});
 		try {
 			opts.readOptionFile(filename);
-		} catch (IOException e) {
-			throw new ExitException("Failed to read option file", e);
+		} catch (Exception e) {
+			throw new ExitException("Failed to read option file.", e);
 		}
 	}