diff --git a/README.md b/README.md
index 74b2fc8f..f49bd69d 100644
--- a/README.md
+++ b/README.md
@@ -1067,6 +1067,18 @@ mediabench-unepic_32.stl
 The script runs one instance of DRAMSys for each of the files in the list.
 **The multiple instances run in parallel**.
 
+If some traces in trace_list are compressed in a tar.gz and require
+decompression before execution the option **tgz_traces** can be set to
+**yes**. The tarball is specified by the variable **tgz_file** and it is
+expected to be available (already commited and pushed to be available after
+cloning) in the [trace folder](DRAMSys/library/resources/traces). DRAMSylva
+will uncompress the tarball extracting the traces before using them.
+
+``` bash
+tgz_traces="yes"
+tgz_file="rgr_traces_flauer_ddr4_8b.tar.gz"
+```
+
 Set the variable **use_json_cfg** to **yes** in order to override sim_files
 with new simulation files generated from a JSON description. Otherwise the
 simulation files are the ones specified by sim_files. Files are expected to be