diff --git a/plugins/processors/filter/filter.go b/plugins/processors/filter/filter.go
index 0c17c36b1..2e6157eee 100644
--- a/plugins/processors/filter/filter.go
+++ b/plugins/processors/filter/filter.go
@@ -69,7 +69,7 @@ func (f *Filter) applyRules(m telegraf.Metric) bool {
 }
 
 func init() {
-	processors.Add("Filter", func() telegraf.Processor {
+	processors.Add("filter", func() telegraf.Processor {
 		return &Filter{}
 	})
 }