diff --git a/arc-core/src/arc/util/serialization/Json.java b/arc-core/src/arc/util/serialization/Json.java
index 1773deec..28a1a6f9 100644
--- a/arc-core/src/arc/util/serialization/Json.java
+++ b/arc-core/src/arc/util/serialization/Json.java
@@ -603,7 +603,6 @@ public void writeValue(Object value, Class knownType, Class elementType){
                 writeObjectEnd();
                 return;
             }
-
             if(value instanceof ObjectIntMap){
                 if(knownType == null) knownType = ObjectIntMap.class;
                 writeObjectStart(actualType, knownType);
@@ -614,6 +613,16 @@ public void writeValue(Object value, Class knownType, Class elementType){
                 writeObjectEnd();
                 return;
             }
+            if(value instanceof ObjectFloatMap){
+                if(knownType == null) knownType = ObjectFloatMap.class;
+                writeObjectStart(actualType, knownType);
+                for(ObjectFloatMap.Entry entry : ((ObjectFloatMap<?>)value).entries()){
+                    writer.name(convertToString(entry.key));
+                    writer.value(entry.value);
+                }
+                writeObjectEnd();
+                return;
+            }
             if(value instanceof IntMap){
                 if(knownType == null) knownType = IntMap.class;
                 writeObjectStart(actualType, knownType);