diff --git a/External/Herwig/cmt/requirements b/External/Herwig/cmt/requirements
index 828c15ab18452e47e4e1cf2bd112bc429d11bf32..b6f90403b2326b0ef5af7cdde59e836639c216be 100755
--- a/External/Herwig/cmt/requirements
+++ b/External/Herwig/cmt/requirements
@@ -8,7 +8,7 @@ use LCG_Configuration
 
 # Adapt standard macros for export
 
-macro Herwig_home "$(LCG_ROOT)/external/MCGenerators_lcgcmt$(LCG_config_version)/herwig"
+macro Herwig_home "$(LCG_external)/MCGenerators/herwig"
 macro herwig_native_version "6.520.2"
 macro Herwig_native_version "$(herwig_native_version)_lcgcmt$(LCG_config_version)"
 macro Herwig_system "$(LCG_ext_system)" \