1 files changed, 4 insertions, 0 deletions

diff --git a/src/main/java/cuchaz/enigma/mapping/Mappings.java b/src/main/java/cuchaz/enigma/mapping/Mappings.java
index 79d9f10..307b1bd 100644
--- a/src/main/java/cuchaz/enigma/mapping/Mappings.java
+++ b/src/main/java/cuchaz/enigma/mapping/Mappings.java
@@ -47,6 +47,10 @@ public class Mappings {
         }
 
         public void addClassMapping(ClassMapping classMapping) throws MappingConflict {
+                if (classMapping.isObfuscated()) {
+                        return;
+                }
+
                 if (this.classesByObf.containsKey(classMapping.getObfFullName())) {
                         throw new MappingConflict("class", classMapping.getObfFullName(), this.classesByObf.get(classMapping.getObfFullName()).getObfFullName());
                 }