diff --git a/Core/include/Acts/Vertexing/AMVFInfo.hpp b/Core/include/Acts/Vertexing/AMVFInfo.hpp
index f796f45076aab979c4bc07a253df607b5b44664f..2f6828615e5ee81651038cfd65d2ec7a25522a8c 100644
--- a/Core/include/Acts/Vertexing/AMVFInfo.hpp
+++ b/Core/include/Acts/Vertexing/AMVFInfo.hpp
@@ -12,6 +12,8 @@
 #include "Acts/Utilities/Definitions.hpp"
 #include "Acts/Vertexing/Vertex.hpp"
 
+#include <map>
+
 namespace Acts {
 
 /// @brief Helper struct for storing vertex related information