1 files changed, 4 insertions, 2 deletions

diff --git a/src/main/java/cuchaz/enigma/EnigmaProfile.java b/src/main/java/cuchaz/enigma/EnigmaProfile.java
index a5904ee..d091f53 100644
--- a/src/main/java/cuchaz/enigma/EnigmaProfile.java
+++ b/src/main/java/cuchaz/enigma/EnigmaProfile.java
@@ -15,13 +15,14 @@ import java.util.Optional;
 public final class EnigmaProfile {
         public static final EnigmaProfile EMPTY = new EnigmaProfile(ImmutableMap.of());
 
+        private static final MappingSaveParameters DEFAULT_MAPPING_SAVE_PARAMETERS = new MappingSaveParameters(MappingFileNameFormat.BY_DEOBF);
         private static final Gson GSON = new Gson();
 
         @SerializedName("services")
         private final Map<String, Service> serviceProfiles;
 
         @SerializedName("mapping_save_parameters")
-        private final MappingSaveParameters mappingSaveParameters = new MappingSaveParameters(MappingFileNameFormat.BY_DEOBF);
+        private final MappingSaveParameters mappingSaveParameters = null;
 
         private EnigmaProfile(Map<String, Service> serviceProfiles) {
                 this.serviceProfiles = serviceProfiles;
@@ -37,7 +38,8 @@ public final class EnigmaProfile {
         }
 
         public MappingSaveParameters getMappingSaveParameters() {
-                return mappingSaveParameters;
+                //noinspection ConstantConditions
+                return mappingSaveParameters != null ? EnigmaProfile.DEFAULT_MAPPING_SAVE_PARAMETERS : mappingSaveParameters;
         }
 
         public static class Service {