diff --git a/_config/backtrace.yml b/_config/backtrace.yml
new file mode 100644
index 0000000..a1ebcd1
--- /dev/null
+++ b/_config/backtrace.yml
@@ -0,0 +1,6 @@
+---
+Name: akismet-backtrace
+---
+SilverStripe\Dev\Backtrace:
+  ignore_function_args:
+    - ['SilverStripe\Akismet\AkismetSpamProtector', 'setApiKey']