diff --git a/app/controllers/iqdb_queries_controller.rb b/app/controllers/iqdb_queries_controller.rb
index 1bf36bc86..21a063838 100644
--- a/app/controllers/iqdb_queries_controller.rb
+++ b/app/controllers/iqdb_queries_controller.rb
@@ -3,7 +3,7 @@ class IqdbQueriesController < ApplicationController
 
   def show
     # XXX allow bare search params for backwards compatibility.
-    search_params.merge!(params.slice(:url, :image_url, :post_id, :limit, :similarity, :high_similarity).permit!)
+    search_params.merge!(params.slice(:url, :image_url, :file_url, :post_id, :limit, :similarity, :high_similarity).permit!)
 
     @high_similarity_matches, @low_similarity_matches, @matches = IqdbProxy.search(search_params)
     respond_with(@matches, template: "iqdb_queries/show")
diff --git a/app/logical/iqdb_proxy.rb b/app/logical/iqdb_proxy.rb
index b77ef02fe..a812596ff 100644
--- a/app/logical/iqdb_proxy.rb
+++ b/app/logical/iqdb_proxy.rb
@@ -25,7 +25,10 @@ class IqdbProxy
       file = download(params[:url], :preview_url)
       results = query(file: file, limit: limit)
     elsif params[:image_url].present?
-      file = download(params[:image_url], :image_url)
+      file = download(params[:image_url], :url)
+      results = query(file: file, limit: limit)
+    elsif params[:file_url].present?
+      file = download(params[:file_url], :file_url)
       results = query(file: file, limit: limit)
     elsif params[:post_id].present?
       url = Post.find(params[:post_id]).preview_file_url