diff --git a/tools/test.py b/tools/test.py
index a0238c0da93cec..af88bc55cc0bfb 100755
--- a/tools/test.py
+++ b/tools/test.py
@@ -1613,7 +1613,7 @@ def get_env_type(vm, options_type, context):
 
 
 def get_asan_state(vm, context):
-  asan = Execute([vm, '-p', 'process.config.variables.asan'], context).stdout
+  asan = Execute([vm, '-p', 'process.config.variables.asan'], context).stdout.strip()
   return "on" if asan == "1" else "off"