diff --git a/plugins/filters.go b/plugins/filters.go
index 676c022..df81280 100644
--- a/plugins/filters.go
+++ b/plugins/filters.go
@@ -39,12 +39,12 @@ func RemoveSearchQueries(ctx context.Context, filter *nostr.Filter) {
 	filter.Search = ""
 }
 
-func RemoveKinds(kinds ...int) func(context.Context, *nostr.Filter) {
+func RemoveAllButKinds(kinds ...uint16) func(context.Context, *nostr.Filter) {
 	return func(ctx context.Context, filter *nostr.Filter) {
 		if n := len(filter.Kinds); n > 0 {
 			newKinds := make([]int, 0, n)
 			for i := 0; i < n; i++ {
-				if k := filter.Kinds[i]; !slices.Contains(kinds, k) {
+				if k := filter.Kinds[i]; slices.Contains(kinds, uint16(k)) {
 					newKinds = append(newKinds, k)
 				}
 			}
@@ -53,10 +53,10 @@ func RemoveKinds(kinds ...int) func(context.Context, *nostr.Filter) {
 	}
 }
 
-func RemoveTags(tagNames ...string) func(context.Context, *nostr.Filter) {
+func RemoveAllButTags(tagNames ...string) func(context.Context, *nostr.Filter) {
 	return func(ctx context.Context, filter *nostr.Filter) {
 		for tagName := range filter.Tags {
-			if slices.Contains(tagNames, tagName) {
+			if !slices.Contains(tagNames, tagName) {
 				delete(filter.Tags, tagName)
 			}
 		}