diff --git a/CHANGELOG.md b/CHANGELOG.md
index d688799..375eb8c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 - Added toplevel menu for manual bake avatar, even when MA is also installed (#35)
+- Added support for multiple ExportsPlugin declarations (#40)
 
 ### Fixed
 - Create ApplyOnPlayGlobalActivator correctly when creating and opening scenes (#31)
diff --git a/Editor/API/Attributes/ExportsPlugin.cs b/Editor/API/Attributes/ExportsPlugin.cs
index 115befc..6047b88 100644
--- a/Editor/API/Attributes/ExportsPlugin.cs
+++ b/Editor/API/Attributes/ExportsPlugin.cs
@@ -17,7 +17,7 @@ namespace nadena.dev.ndmf
     /// }
     /// </code>
     /// </summary>
-    [AttributeUsage(AttributeTargets.Assembly)]
+    [AttributeUsage(AttributeTargets.Assembly, AllowMultiple = true)]
     public sealed class ExportsPlugin : Attribute
     {
         public Type PluginType { get; }
diff --git a/UnitTests~/PluginResolverTests.meta b/UnitTests~/PluginResolverTests.meta
new file mode 100644
index 0000000..35c5b45
--- /dev/null
+++ b/UnitTests~/PluginResolverTests.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 7f6546cd2a4385c4198d1331e973160e
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/UnitTests~/PluginResolverTests/SupportsMultipleDeclarations.cs b/UnitTests~/PluginResolverTests/SupportsMultipleDeclarations.cs
new file mode 100644
index 0000000..8313a20
--- /dev/null
+++ b/UnitTests~/PluginResolverTests/SupportsMultipleDeclarations.cs
@@ -0,0 +1,43 @@
+using System.Collections.Immutable;
+using System.Linq;
+using nadena.dev.ndmf;
+using NUnit.Framework;
+using UnitTests.ExportsPluginTest;
+
+[assembly: ExportsPlugin(typeof(PluginA))]
+[assembly: ExportsPlugin(typeof(PluginB))]
+
+namespace UnitTests.ExportsPluginTest
+{
+    internal class PluginA : Plugin<PluginA>
+    {
+        protected override void Configure()
+        {
+            InPhase(BuildPhase.Transforming).Run("test", _ctx => { });
+        }
+    }
+    
+    internal class PluginB : Plugin<PluginB>
+    {
+        protected override void Configure()
+        {
+            InPhase(BuildPhase.Transforming).Run("test", _ctx => { });
+        }
+    }
+    
+    public class SupportsMultipleDeclarations
+    {
+        [Test]
+        public void TestSupportsMultipleDeclarations()
+        {
+            var resolver = new PluginResolver();
+            var plugins =
+                resolver.Passes.SelectMany(kv => kv.Item2) // passes per phase
+                    .Select(pass => pass.Plugin.GetType())
+                    .ToImmutableHashSet();
+            
+            Assert.IsTrue(plugins.Contains(typeof(PluginA)));
+            Assert.IsTrue(plugins.Contains(typeof(PluginB)));
+        }
+    }
+}
\ No newline at end of file
diff --git a/UnitTests~/PluginResolverTests/SupportsMultipleDeclarations.cs.meta b/UnitTests~/PluginResolverTests/SupportsMultipleDeclarations.cs.meta
new file mode 100644
index 0000000..aae4775
--- /dev/null
+++ b/UnitTests~/PluginResolverTests/SupportsMultipleDeclarations.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: bb4d46b745854d2e8cb3922debd53797
+timeCreated: 1696331444
\ No newline at end of file