diff --git a/src/iapws_api.f90 b/src/iapws_api.f90
index b5737c0..bc83e6b 100644
--- a/src/iapws_api.f90
+++ b/src/iapws_api.f90
@@ -38,7 +38,10 @@ function get_version()result(fptr)
 ! ------------------------------------------------------------------------------
 
 
+! ------------------------------------------------------------------------------
+! G704
 
+! ------------------------------------------------------------------------------
 
 
 ! ------------------------------------------------------------------------------