diff --git a/tfm_ci_pylib/utils.py b/tfm_ci_pylib/utils.py
index 5df108a..c2312e5 100755
--- a/tfm_ci_pylib/utils.py
+++ b/tfm_ci_pylib/utils.py
@@ -357,7 +357,7 @@
 
     eabi_size = check_output(["arm-none-eabi-size",
                               filename],
-                             timeout=2).decode('UTF-8').rstrip()
+                             timeout=18).decode('UTF-8').rstrip()
 
     size_data = re.search(size_info_rex, eabi_size)