diff --git a/ogr/ogr_feature.h b/ogr/ogr_feature.h
index 8f791f79164b..ae977c57616e 100644
--- a/ogr/ogr_feature.h
+++ b/ogr/ogr_feature.h
@@ -263,6 +263,9 @@ class CPL_DLL OGRFieldDefn
             m_poFieldDefn->Unseal();
         }
 
+        TemporaryUnsealer(TemporaryUnsealer &&) = default;
+        TemporaryUnsealer &operator=(TemporaryUnsealer &&) = default;
+
         ~TemporaryUnsealer()
         {
             m_poFieldDefn->Seal();
@@ -410,6 +413,9 @@ class CPL_DLL OGRGeomFieldDefn
             m_poFieldDefn->Unseal();
         }
 
+        TemporaryUnsealer(TemporaryUnsealer &&) = default;
+        TemporaryUnsealer &operator=(TemporaryUnsealer &&) = default;
+
         ~TemporaryUnsealer()
         {
             m_poFieldDefn->Seal();