diff --git a/source/blender/blenkernel/BKE_attribute_storage.hh b/source/blender/blenkernel/BKE_attribute_storage.hh
index 273a43a7ff8..5be5f871d07 100644
--- a/source/blender/blenkernel/BKE_attribute_storage.hh
+++ b/source/blender/blenkernel/BKE_attribute_storage.hh
@@ -178,7 +178,7 @@ class AttributeStorage : public ::AttributeStorage {
                  Attribute::DataVariant data);
 
   /** Return a possibly changed version of the input name that is unique within existing names. */
-  std::string unique_name_calc(StringRef name);
+  std::string unique_name_calc(StringRef name) const;
 
   /** Change the name of a single existing attribute. */
   void rename(StringRef old_name, std::string new_name);
diff --git a/source/blender/blenkernel/intern/attribute_storage.cc b/source/blender/blenkernel/intern/attribute_storage.cc
index 6ba20702798..81db4638646 100644
--- a/source/blender/blenkernel/intern/attribute_storage.cc
+++ b/source/blender/blenkernel/intern/attribute_storage.cc
@@ -301,7 +301,7 @@ bool AttributeStorage::remove(const StringRef name)
   return this->runtime->attributes.remove_as(name);
 }
 
-std::string AttributeStorage::unique_name_calc(const StringRef name)
+std::string AttributeStorage::unique_name_calc(const StringRef name) const
 {
   return BLI_uniquename_cb(
       [&](const StringRef check_name) { return this->lookup(check_name) != nullptr; }, '.', name);