diff --git a/tools/templates/f77/demo_ftnlib.cpp b/tools/templates/f77/demo_ftnlib.cpp
index 5f2a067b3..53201cc57 100644
--- a/tools/templates/f77/demo_ftnlib.cpp
+++ b/tools/templates/f77/demo_ftnlib.cpp
@@ -35,6 +35,8 @@
 #include <cantera/Cantera.h>
 #include <cantera/IdealGasMix.h>
 
+using namespace Cantera;
+using namespace Cantera_CXX;
 
 // store a pointer to an IdealGasMix object
 static IdealGasMix* _gas = 0;