diff --git a/src/utils/result.hpp b/src/utils/result.hpp
index dea6e16..3ffbd2f 100644
--- a/src/utils/result.hpp
+++ b/src/utils/result.hpp
@@ -132,8 +132,6 @@ namespace detail {
             }
         }
     };
-
-    struct monostate {};
 }
 }
 
diff --git a/src/utils/utils.hpp b/src/utils/utils.hpp
index bc26764..b546246 100644
--- a/src/utils/utils.hpp
+++ b/src/utils/utils.hpp
@@ -185,6 +185,8 @@ namespace detail {
         return static_cast<U>(v);
     }
 
+    struct monostate {};
+
     // TODO: Rework some stuff here. Not sure deleters should be optional or moved.
     // Also allow file_wrapper file = std::fopen(object_path.c_str(), "rb");
     template<