diff --git a/boopu/exec/boopu.lua b/boopu/exec/boopu.lua
index 05c0f40..40f8f1f 100644
--- a/boopu/exec/boopu.lua
+++ b/boopu/exec/boopu.lua
@@ -50,5 +50,10 @@ f:close()
 print("\nDone! Saving config...")
 
 local f = io.open(cfgpath, "wb")
-f:write(serial.serialize(config))
-f:close()
+if f then
+ f:write(serial.serialize(config))
+ f:close()
+else
+ print("Failed to save config. Lost contents:")
+ print(serial.serialize(config))
+end