diff --git a/coverage-tool/coverage-reporting/clone_sources.py b/coverage-tool/coverage-reporting/clone_sources.py
index fb1807d..ec38acd 100644
--- a/coverage-tool/coverage-reporting/clone_sources.py
+++ b/coverage-tool/coverage-reporting/clone_sources.py
@@ -18,7 +18,7 @@
 from random import random
 
 
-def call_cmd(cmd, print_cmd=False):
+def call_cmd(cmd, print_cmd=True):
     """
     Function that execute an os command and returns its output
 
@@ -135,6 +135,7 @@
                 else:
                     call_cmd("cd {};git checkout -q FETCH_HEAD".format(
                         output_loc))
+                call_cmd("cd {};git submodule update --init --recursive || true".format(output_loc))
             elif source['type'] == 'http':
                 site = source
                 output_loc = os.path.join(output_dir, site["LOCATION"])
@@ -146,6 +147,7 @@
                     site['URL'], tmp_folder))
                 call_cmd("mkdir -p {}".format(output_loc))
                 if site['COMPRESSION'] == "xz":
-                    call_cmd("cd {};tar -xzf $(basename {}) -C {}".format(
-                        tmp_folder, site['URL'], output_loc))
+                    call_cmd("cd {};tar -xzf $(basename {}) -C {} {}".format(
+                        tmp_folder, site['URL'], output_loc,
+                        source.get("EXTRA_PARAMS", "")))
                 call_cmd("rm -rf {}".format(tmp_folder))