diff --git a/src/io_occ/io_occ_gltf_reader.cpp b/src/io_occ/io_occ_gltf_reader.cpp
index 9e500629..3991ecce 100644
--- a/src/io_occ/io_occ_gltf_reader.cpp
+++ b/src/io_occ/io_occ_gltf_reader.cpp
@@ -16,13 +16,16 @@ class OccGltfReader::Properties : public OccBaseMeshReaderProperties {
     Properties(PropertyGroup* parentGroup)
         : OccBaseMeshReaderProperties(parentGroup)
     {
-       this->skipEmptyNodes.setDescription(
-                    textIdTr("Ignore nodes without geometry(`Yes` by default)"));
+        this->skipEmptyNodes.setDescription(
+            textIdTr("Ignore nodes without geometry(`Yes` by default)")
+        );
         this->useMeshNameAsFallback.setDescription(
-                    textIdTr("Use mesh name in case if node name is empty(`Yes` by default)"));
+            textIdTr("Use mesh name in case if node name is empty(`Yes` by default)")
+        );
     }
 
-    void restoreDefaults() override {
+    void restoreDefaults() override
+    {
         OccBaseMeshReaderProperties::restoreDefaults();
         this->skipEmptyNodes.setValue(true);
         this->useMeshNameAsFallback.setValue(true);
diff --git a/src/io_occ/io_occ_gltf_reader.h b/src/io_occ/io_occ_gltf_reader.h
index 0670ce38..c6e4b290 100644
--- a/src/io_occ/io_occ_gltf_reader.h
+++ b/src/io_occ/io_occ_gltf_reader.h
@@ -36,7 +36,7 @@ class OccGltfReader : public OccBaseMeshReader {
 private:
     class Properties;
     Parameters m_params;
-    mutable RWGltf_CafReader m_reader;
+    RWGltf_CafReader m_reader;
 };
 
 } // namespace IO
diff --git a/src/io_occ/io_occ_obj_reader.cpp b/src/io_occ/io_occ_obj_reader.cpp
index 590ce8ad..e495773a 100644
--- a/src/io_occ/io_occ_obj_reader.cpp
+++ b/src/io_occ/io_occ_obj_reader.cpp
@@ -17,10 +17,12 @@ class OccObjReader::Properties : public OccBaseMeshReaderProperties {
         : OccBaseMeshReaderProperties(parentGroup)
     {
         this->singlePrecisionVertexCoords.setDescription(
-                    textId("Single precision flag for reading vertex data(coordinates)").tr());
+            textId("Single precision flag for reading vertex data(coordinates)").tr()
+        );
     }
 
-    void restoreDefaults() override {
+    void restoreDefaults() override
+    {
         OccBaseMeshReaderProperties::restoreDefaults();
         this->singlePrecisionVertexCoords.setValue(false);
     }