diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5dfef7d..f593022 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.20)
 include(cmake/color.cmake)
-set(BLT_VERSION 0.20.4)
+set(BLT_VERSION 0.20.5)
 set(BLT_TEST_VERSION 0.0.1)
 
 set(BLT_TARGET BLT)
diff --git a/include/blt/meta/config_generator.h b/include/blt/meta/config_generator.h
index efe06ae..7dcce8b 100644
--- a/include/blt/meta/config_generator.h
+++ b/include/blt/meta/config_generator.h
@@ -33,7 +33,7 @@ namespace blt
         NAME = new_##NAME;                                              \
         return *this;                                                   \
     }                                                                   \
-    auto& set_##NAME(TYPE new_##NAME)                                   \
+    auto& set_##NAME(TYPE&& new_##NAME)                                 \
     {                                                                   \
         NAME = std::move(new_##NAME);                                   \
         return *this;                                                   \