diff --git a/Source/Engine/ContentExporters/AssetsExportingManager.h b/Source/Engine/ContentExporters/AssetsExportingManager.h
index f9f50075e..7e3b11b6d 100644
--- a/Source/Engine/ContentExporters/AssetsExportingManager.h
+++ b/Source/Engine/ContentExporters/AssetsExportingManager.h
@@ -10,7 +10,7 @@
 /// <summary>
 /// Assets Importing service allows to import or create new assets
 /// </summary>
-class AssetsExportingManager
+class FLAXENGINE_API AssetsExportingManager
 {
 public:
     /// <summary>
diff --git a/Source/Engine/ContentExporters/Types.h b/Source/Engine/ContentExporters/Types.h
index cfc341f37..a2095934f 100644
--- a/Source/Engine/ContentExporters/Types.h
+++ b/Source/Engine/ContentExporters/Types.h
@@ -26,7 +26,7 @@ typedef Function<ExportAssetResult(ExportAssetContext&)> ExportAssetFunction;
 /// <summary>
 /// Exporting asset context structure
 /// </summary>
-class ExportAssetContext : public NonCopyable
+class FLAXENGINE_API ExportAssetContext : public NonCopyable
 {
 public:
     /// <summary>
diff --git a/Source/Engine/ContentImporters/AssetsImportingManager.h b/Source/Engine/ContentImporters/AssetsImportingManager.h
index 2f8369a41..2930f8979 100644
--- a/Source/Engine/ContentImporters/AssetsImportingManager.h
+++ b/Source/Engine/ContentImporters/AssetsImportingManager.h
@@ -9,7 +9,7 @@
 /// <summary>
 /// Assets Importing service allows to import or create new assets
 /// </summary>
-class AssetsImportingManager
+class FLAXENGINE_API AssetsImportingManager
 {
 public:
     /// <summary>
diff --git a/Source/Engine/ContentImporters/Types.h b/Source/Engine/ContentImporters/Types.h
index 05d1fc116..4ebf55583 100644
--- a/Source/Engine/ContentImporters/Types.h
+++ b/Source/Engine/ContentImporters/Types.h
@@ -28,7 +28,7 @@ typedef Function<CreateAssetResult(CreateAssetContext&)> CreateAssetFunction;
 /// <summary>
 /// Importing/creating asset context structure
 /// </summary>
-class CreateAssetContext : public NonCopyable
+class FLAXENGINE_API CreateAssetContext : public NonCopyable
 {
 private:
     CreateAssetResult _applyChangesResult;