diff --git a/scripts/commands.py b/scripts/commands.py
index 90ccf14c0ecf..e2f4257fe2ad 100644
--- a/scripts/commands.py
+++ b/scripts/commands.py
@@ -150,7 +150,7 @@ def delete_memory(key):
 
 
 def overwrite_memory(key, string):
-    if key >= 0 and key < len(mem.permanent_memory):
+    if int(key) >= 0 and key < len(mem.permanent_memory):
         _text = "Overwriting memory with key " + \
             str(key) + " and string " + string
         mem.permanent_memory[key] = string