diff --git a/External/Pythia/cmt/requirements b/External/Pythia/cmt/requirements
index b07825ce60abc8c42605aaf9f98dc49cb9e81641..52a84879dec7f4bdd4d1bb86712d9566ae49a76c 100755
--- a/External/Pythia/cmt/requirements
+++ b/External/Pythia/cmt/requirements
@@ -6,7 +6,7 @@ author  Ian Hinchliffe <I_Hinchliffe@lbl.gov>
 use AtlasExternalArea AtlasExternalArea-* External
 use LCG_Configuration
 
-macro Pythia_home "$(LCG_ROOT)/external/MCGenerators_lcgcmt$(LCG_config_version)/pythia6"
+macro Pythia_home "$(LCG_external)/MCGenerators/pythia6"
 macro pythia_native_version "428.2"
 macro Pythia_native_version "$(pythia_native_version)_lcgcmt$(LCG_config_version)"
 macro Pythia_system "$(LCG_ext_system)" \