diff --git a/Editor/ParamsUsage/MAParametersIntrospection.cs b/Editor/ParamsUsage/MAParametersIntrospection.cs
index 1924c2d0..9c3d4e46 100644
--- a/Editor/ParamsUsage/MAParametersIntrospection.cs
+++ b/Editor/ParamsUsage/MAParametersIntrospection.cs
@@ -87,7 +87,7 @@ namespace nadena.dev.modular_avatar.core.editor
                     _component, PluginDefinition.Instance, paramType)
                 {
                     IsAnimatorOnly = animatorOnly,
-                    WantSynced = !p.localOnly,
+                    WantSynced = !p.localOnly && !animatorOnly,
                     IsHidden = p.internalParameter,
                     DefaultValue = p.defaultValue
                 };
diff --git a/Editor/RenameParametersHook.cs b/Editor/RenameParametersHook.cs
index 25ce41ef..afbf83ba 100644
--- a/Editor/RenameParametersHook.cs
+++ b/Editor/RenameParametersHook.cs
@@ -136,6 +136,7 @@ namespace nadena.dev.modular_avatar.core.editor
                 if (ResolvedParameter.syncType == ParameterSyncType.NotSynced)
                 {
                     ResolvedParameter.syncType = info.ResolvedParameter.syncType;
+                    ResolvedParameter.localOnly = info.ResolvedParameter.localOnly;
                 } else if (ResolvedParameter.syncType != info.ResolvedParameter.syncType && info.ResolvedParameter.syncType != ParameterSyncType.NotSynced)
                 {
                     TypeConflict = true;
@@ -734,6 +735,7 @@ namespace nadena.dev.modular_avatar.core.editor
                 ParameterConfig parameterConfig = param;
                 parameterConfig.nameOrPrefix = remapTo;
                 parameterConfig.remapTo = remapTo;
+                parameterConfig.localOnly = parameterConfig.localOnly || param.syncType == ParameterSyncType.NotSynced;
                 var info = new ParameterInfo()
                 {
                     ResolvedParameter = parameterConfig,
diff --git a/UnitTests~/RenameParametersTests/RenameParametersTests.cs b/UnitTests~/RenameParametersTests/RenameParametersTests.cs
index 983fd328..8942b5e4 100644
--- a/UnitTests~/RenameParametersTests/RenameParametersTests.cs
+++ b/UnitTests~/RenameParametersTests/RenameParametersTests.cs
@@ -306,6 +306,45 @@ namespace modular_avatar_tests.RenameParametersTests
             
             Assert.AreNotEqual(fuga.name, "Fuga"); // should be auto-renamed
         }
+
+        [Test]
+        public void AnimatorOnlyAndLocalParameterShouldNotSync()
+        {
+            var root = CreateRoot("x");
+            
+            var c1 = CreateChild(root, "c1");
+            var c2 = CreateChild(root, "c2");
+            
+            var p1 = c1.AddComponent<ModularAvatarParameters>();
+            var p2 = c2.AddComponent<ModularAvatarParameters>();
+
+            p1.parameters = new()
+            {
+                new()
+                {
+                    nameOrPrefix = "a",
+                    syncType = ParameterSyncType.NotSynced,
+                    localOnly = false
+                }
+            };
+            p2.parameters = new()
+            {
+                new()
+                {
+                    nameOrPrefix = "a",
+                    syncType = ParameterSyncType.Int,
+                    localOnly = true
+                }
+            };
+            
+            AvatarProcessor.ProcessAvatar(root);
+            
+            var expParams = root.GetComponent<VRCAvatarDescriptor>().expressionParameters.parameters
+                .Select(p => new KeyValuePair<string, VRCExpressionParameters.Parameter>(p.name, p))
+                .ToImmutableDictionary();
+            
+            Assert.IsFalse(expParams["a"].networkSynced);
+        }
     }
 }