diff --git a/tools/tiny-test-fw/IDF/IDFApp.py b/tools/tiny-test-fw/IDF/IDFApp.py
index 45386f0eb1..7033301ff5 100644
--- a/tools/tiny-test-fw/IDF/IDFApp.py
+++ b/tools/tiny-test-fw/IDF/IDFApp.py
@@ -81,7 +81,7 @@ class IDFApp(App.BaseApp):
             for line in f:
                 configs = line.split('=')
                 if len(configs) == 2:
-                    d[configs[0]] = configs[1]
+                    d[configs[0]] = configs[1].rstrip()
         return d
 
     def get_binary_path(self, app_path):