diff --git a/src/Backends/Helmholtz/HelmholtzEOSBackend.h b/src/Backends/Helmholtz/HelmholtzEOSBackend.h
index 1e4b85b2..03bc1b7f 100644
--- a/src/Backends/Helmholtz/HelmholtzEOSBackend.h
+++ b/src/Backends/Helmholtz/HelmholtzEOSBackend.h
@@ -10,6 +10,7 @@
 
 #include <vector>
 #include "HelmholtzEOSMixtureBackend.h"
+#include "Fluids/FluidLibrary.h"
 
 namespace CoolProp {
 
@@ -17,6 +18,7 @@ class HelmholtzEOSBackend : public HelmholtzEOSMixtureBackend  {
 public:
     HelmholtzEOSBackend();
     HelmholtzEOSBackend(CoolPropFluid *pFluid){set_components(std::vector<CoolPropFluid*>(1,pFluid));};
+    HelmholtzEOSBackend(const std::string &name){set_components(std::vector<CoolPropFluid*>(1,&(get_library().get(name))));};
     virtual ~HelmholtzEOSBackend(){};
 };