diff --git a/Pay/PayAddress.swift b/Pay/PayAddress.swift
index d0cf64b6..149fe62c 100644
--- a/Pay/PayAddress.swift
+++ b/Pay/PayAddress.swift
@@ -80,7 +80,7 @@ public struct PayPostalAddress {
         if let zip = zip {
             
             let trimmedZip = zip.trimmingCharacters(in: .whitespacesAndNewlines)
-            if trimmedZip.count < 4 {
+            if trimmedZip.count < 5 {
                 let (zip, isPadded) = PayPostalAddress.paddedPostalCode(trimmedZip, for: countryCode)
                 self.zip      = zip
                 self.isPadded = isPadded