diff --git a/code/AssetLib/glTF/glTFAsset.h b/code/AssetLib/glTF/glTFAsset.h
index 1da70832b..623f18173 100644
--- a/code/AssetLib/glTF/glTFAsset.h
+++ b/code/AssetLib/glTF/glTFAsset.h
@@ -954,7 +954,9 @@ namespace glTF
         virtual void AttachToDocument(Document& doc) = 0;
         virtual void DetachFromDocument() = 0;
 
+#if !defined(ASSIMP_BUILD_NO_EXPORT)
         virtual void WriteObjects(AssetWriter& writer) = 0;
+#endif
     };
 
 
@@ -986,8 +988,10 @@ namespace glTF
         void AttachToDocument(Document& doc);
         void DetachFromDocument();
 
+#if !defined(ASSIMP_BUILD_NO_EXPORT)
         void WriteObjects(AssetWriter& writer)
             { WriteLazyDict<T>(*this, writer); }
+#endif
 
         Ref<T> Add(T* obj);
 
diff --git a/code/AssetLib/glTF/glTFImporter.cpp b/code/AssetLib/glTF/glTFImporter.cpp
index 3335fc109..5e072dd2a 100644
--- a/code/AssetLib/glTF/glTFImporter.cpp
+++ b/code/AssetLib/glTF/glTFImporter.cpp
@@ -43,7 +43,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "AssetLib/glTF/glTFImporter.h"
 #include "AssetLib/glTF/glTFAsset.h"
+#if !defined(ASSIMP_BUILD_NO_EXPORT)
 #include "AssetLib/glTF/glTFAssetWriter.h"
+#endif
 #include "PostProcessing/MakeVerboseFormat.h"
 
 #include <assimp/StringComparison.h>
diff --git a/code/AssetLib/glTF2/glTF2Asset.h b/code/AssetLib/glTF2/glTF2Asset.h
index 53b079117..fad5cba83 100644
--- a/code/AssetLib/glTF2/glTF2Asset.h
+++ b/code/AssetLib/glTF2/glTF2Asset.h
@@ -997,7 +997,9 @@ public:
     virtual void AttachToDocument(Document &doc) = 0;
     virtual void DetachFromDocument() = 0;
 
+#if !defined(ASSIMP_BUILD_NO_EXPORT)
     virtual void WriteObjects(AssetWriter &writer) = 0;
+#endif
 };
 
 template <class T>
@@ -1030,7 +1032,9 @@ class LazyDict : public LazyDictBase {
     void AttachToDocument(Document &doc);
     void DetachFromDocument();
 
+#if !defined(ASSIMP_BUILD_NO_EXPORT)
     void WriteObjects(AssetWriter &writer) { WriteLazyDict<T>(*this, writer); }
+#endif
 
     Ref<T> Add(T *obj);
 
diff --git a/code/AssetLib/glTF2/glTF2Importer.cpp b/code/AssetLib/glTF2/glTF2Importer.cpp
index dca6fcb2d..ab1f01bf8 100644
--- a/code/AssetLib/glTF2/glTF2Importer.cpp
+++ b/code/AssetLib/glTF2/glTF2Importer.cpp
@@ -44,7 +44,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "AssetLib/glTF2/glTF2Importer.h"
 #include "PostProcessing/MakeVerboseFormat.h"
 #include "AssetLib/glTF2/glTF2Asset.h"
+#if !defined(ASSIMP_BUILD_NO_EXPORT)
 #include "AssetLib/glTF2/glTF2AssetWriter.h"
+#endif
 
 #include <assimp/CreateAnimMesh.h>
 #include <assimp/StringComparison.h>