1 files changed, 1 insertions, 1 deletions

diff --git a/src/main/java/cuchaz/enigma/EnigmaProfile.java b/src/main/java/cuchaz/enigma/EnigmaProfile.java
index 9dc5ff2..feb5fdb 100644
--- a/src/main/java/cuchaz/enigma/EnigmaProfile.java
+++ b/src/main/java/cuchaz/enigma/EnigmaProfile.java
@@ -45,7 +45,7 @@ public final class EnigmaProfile {
                 }
 
                 public Optional<String> getArgument(String key) {
-                        return Optional.ofNullable(args.get(key));
+                        return args != null ? Optional.ofNullable(args.get(key)) : Optional.empty();
                 }
         }
 }