diff --git a/alib2abstraction/src/core/type_details.cpp b/alib2abstraction/src/core/type_details.cpp
index 8d6bd65dca3d87794c8f6996045d6f42ae1c44ae..97a2cecc518f023b52e01122c7130d50217cc319 100644
--- a/alib2abstraction/src/core/type_details.cpp
+++ b/alib2abstraction/src/core/type_details.cpp
@@ -22,7 +22,7 @@ type_details type_details::as_type ( const std::string & string ) {
 }
 
 type_details type_details::as_type ( const std::string & string, const std::vector < std::string > & templateParams ) {
-	std::vector < std::unique_ptr < type_details_base > > templates;
+	std::vector < std::unique_ptr < type_details_base > > templates ( templateParams.size ( ) );
 	for ( const std::string & templateParam : templateParams ) {
 		templates.push_back ( std::make_unique < type_details_type > ( templateParam ) );
 	}