diff --git a/src/main/java/de/bixilon/minosoft/config/profile/GlobalProfileManager.kt b/src/main/java/de/bixilon/minosoft/config/profile/GlobalProfileManager.kt
index b101ab47d..6a14c5761 100644
--- a/src/main/java/de/bixilon/minosoft/config/profile/GlobalProfileManager.kt
+++ b/src/main/java/de/bixilon/minosoft/config/profile/GlobalProfileManager.kt
@@ -13,6 +13,7 @@
 
 package de.bixilon.minosoft.config.profile
 
+import com.fasterxml.jackson.databind.ObjectMapper
 import com.fasterxml.jackson.databind.type.MapType
 import de.bixilon.kutil.cast.CastUtil.unsafeCast
 import de.bixilon.kutil.collections.CollectionUtil.lockMapOf
@@ -40,6 +41,7 @@ import de.bixilon.minosoft.data.registries.ResourceLocation
 import de.bixilon.minosoft.gui.eros.crash.ErosCrashReport.Companion.crash
 import de.bixilon.minosoft.terminal.RunConfiguration
 import de.bixilon.minosoft.util.json.Jackson
+import de.bixilon.minosoft.util.json.ResourceLocationSerializer
 import de.bixilon.minosoft.util.logging.Log
 import de.bixilon.minosoft.util.logging.LogLevels
 import de.bixilon.minosoft.util.logging.LogMessageType
diff --git a/src/main/java/de/bixilon/minosoft/util/json/ResourceLocationSerializer.kt b/src/main/java/de/bixilon/minosoft/util/json/ResourceLocationSerializer.kt
index ab4755ac3..61849d684 100644
--- a/src/main/java/de/bixilon/minosoft/util/json/ResourceLocationSerializer.kt
+++ b/src/main/java/de/bixilon/minosoft/util/json/ResourceLocationSerializer.kt
@@ -28,19 +28,31 @@ object ResourceLocationSerializer : SimpleModule() {
     init {
         addDeserializer(ResourceLocation::class.java, Deserializer)
         addSerializer(ResourceLocation::class.java, Serializer)
+        addKeyDeserializer(ResourceLocation::class.java, KeyDeserializer)
+        addKeySerializer(ResourceLocation::class.java, KeySerializer)
     }
 
     object Deserializer : StdDeserializer<ResourceLocation>(ResourceLocation::class.java) {
-
         override fun deserialize(parser: JsonParser, context: DeserializationContext?): ResourceLocation {
             return parser.valueAsString.toResourceLocation()
         }
     }
 
     object Serializer : StdSerializer<ResourceLocation>(ResourceLocation::class.java) {
-
         override fun serialize(value: ResourceLocation?, generator: JsonGenerator, provider: SerializerProvider?) {
             generator.writeString(value?.full)
         }
     }
+
+    object KeyDeserializer : com.fasterxml.jackson.databind.KeyDeserializer() {
+        override fun deserializeKey(key: String, ctxt: DeserializationContext?): Any {
+            return key.toResourceLocation()
+        }
+    }
+
+    object KeySerializer : com.fasterxml.jackson.databind.JsonSerializer<ResourceLocation>() {
+        override fun serialize(value: ResourceLocation?, gen: JsonGenerator, serializers: SerializerProvider?) {
+            gen.writeFieldName(value?.toString())
+        }
+    }
 }