diff --git a/Pachyderm/Model/Attachment.swift b/Pachyderm/Model/Attachment.swift
index 1ab4b980..b9663bc6 100644
--- a/Pachyderm/Model/Attachment.swift
+++ b/Pachyderm/Model/Attachment.swift
@@ -115,7 +115,7 @@ extension Attachment {
 }
 
 fileprivate extension URL {
-    private static let allowedChars = CharacterSet.urlHostAllowed.union(.urlPathAllowed)
+    private static let allowedChars = CharacterSet.urlHostAllowed.union(.urlPathAllowed).union(.urlQueryAllowed)
     
     init?(lenient string: String) {
         guard let escaped = string.addingPercentEncoding(withAllowedCharacters: URL.allowedChars) else {