diff --git a/Sources/App/routes.swift b/Sources/App/routes.swift
index 7227dc9..132bf93 100755
--- a/Sources/App/routes.swift
+++ b/Sources/App/routes.swift
@@ -107,7 +107,7 @@ func routes(_ app: Application) throws {
     }
     
     // Upload an image
-    app.postCatching("images", "n") { request -> Data in
+    app.postCatching("images", ":n") { request -> Data in
         guard let cap = request.parameters.get("n", as: Int.self) else {
             log("Invalid parameter for cap")
             throw Abort(.badRequest)