diff --git a/alib2std/src/extensions/variant.hpp b/alib2std/src/extensions/variant.hpp
index 9f81dad6ca735e09d4ec900d60fe99533271d7b9..2903a310e21fbd2a86b636746dda498b495692df 100644
--- a/alib2std/src/extensions/variant.hpp
+++ b/alib2std/src/extensions/variant.hpp
@@ -177,7 +177,7 @@ struct SizeOf {
 
 template<>
 struct SizeOf<void> {
-	static const size_t size = 0;
+	static const size_t size = 1;
 };
 
 template<class T>