diff --git a/dotnet-runtime-6.0/eng/native/genmoduleindex.sh b/dotnet-runtime-6.0/eng/native/genmoduleindex.sh
index 399a972d7..bc95bb2b6 100755
--- a/dotnet-runtime-6.0/eng/native/genmoduleindex.sh
+++ b/dotnet-runtime-6.0/eng/native/genmoduleindex.sh
@@ -28,7 +28,7 @@ Darwin)
   cmd="dwarfdump -u $1"
   pattern='^UUID: ([0-9A-Fa-f\-]+)';;
 *)
-  cmd="readelf -n $1"
+  cmd="readelf -n $1 | sed -e 's|.*\(Build ID\)|\1|'"
   pattern='^[[:space:]]*Build ID: ([0-9A-Fa-f\-]+)';;
 esac