diff --git a/pkg/appview/handlers/images.go b/pkg/appview/handlers/images.go
index 7b6f1a5..9fb766f 100644
--- a/pkg/appview/handlers/images.go
+++ b/pkg/appview/handlers/images.go
@@ -178,8 +178,11 @@ func (h *DeleteManifestHandler) ServeHTTP(w http.ResponseWriter, r *http.Request
 
 		// Delete each tag from PDS and database
 		for _, tag := range tags {
-			// Delete from PDS
-			tagRKey := fmt.Sprintf("%s:%s", repo, tag)
+			// Delete from PDS. Must go through RepositoryTagToRKey: the write
+			// path encodes repository slashes as "~", so hand-building the
+			// rkey here targets a record that doesn't exist (a silent no-op,
+			// since deleteRecord is idempotent) for any repo with a "/" in it.
+			tagRKey := atproto.RepositoryTagToRKey(repo, tag)
 			if err := pdsClient.DeleteRecord(r.Context(), atproto.TagCollection, tagRKey); err != nil {
 				// Check if OAuth error - if so, invalidate sessions and return 401
 				if handleOAuthError(r.Context(), h.Refresher, user.DID, err) {