diff --git a/build-k4.sh b/build-k4.sh
index 80ffe55a269386e1f8e6b35936a5992837ee82bb..b8ac7cfa82882eabfbe443cd662fc44255570a8b 100755
--- a/build-k4.sh
+++ b/build-k4.sh
@@ -57,9 +57,6 @@ function run-cmake() {
 
     cd $blddir
 
-    local clhep_prefix=$(eval echo $(clhep-config --prefix))
-    local clhep_include=${clhep_prefix}/include
-
     # locate the pandorapfa
     local pandorapfa=$(echo $CMAKE_PREFIX_PATH | tr ':' '\n' | grep pandorapfa | head -n1)
     info: "Find PandoraPFA: $pandorapfa"