diff --git a/lib/dpul_collections/indexing_pipeline/figgy/hydration_cache_entry.ex b/lib/dpul_collections/indexing_pipeline/figgy/hydration_cache_entry.ex
index a778ecef..88f60412 100644
--- a/lib/dpul_collections/indexing_pipeline/figgy/hydration_cache_entry.ex
+++ b/lib/dpul_collections/indexing_pipeline/figgy/hydration_cache_entry.ex
@@ -49,10 +49,6 @@ defmodule DpulCollections.IndexingPipeline.Figgy.HydrationCacheEntry do
     extract_service_url(member_data[id])
   end
 
-  defp extract_service_url(_id, _) do
-    nil
-  end
-
   # Find the derivative FileMetadata
   defp extract_service_url(%{
          "internal_resource" => "FileSet",
@@ -84,6 +80,10 @@ defmodule DpulCollections.IndexingPipeline.Figgy.HydrationCacheEntry do
     "https://iiif-cloud.princeton.edu/iiif/2/#{uuid_path}"
   end
 
+  defp extract_service_url(nil), do: nil
+
+  defp extract_service_url(_id, _), do: nil
+
   defp is_derivative(%{
          "mime_type" => ["image/tiff"],
          "use" => [%{"@id" => "http://pcdm.org/use#ServiceFile"}]
diff --git a/test/dpul_collections/indexing_pipeline/figgy/hydration_cache_entry_test.exs b/test/dpul_collections/indexing_pipeline/figgy/hydration_cache_entry_test.exs
index acf646be..f17d9ee5 100644
--- a/test/dpul_collections/indexing_pipeline/figgy/hydration_cache_entry_test.exs
+++ b/test/dpul_collections/indexing_pipeline/figgy/hydration_cache_entry_test.exs
@@ -42,6 +42,7 @@ defmodule DpulCollections.IndexingPipeline.Figgy.HydrationCacheEntryTest do
             "member_ids" => %{
               "1" => %{
                 "internal_resource" => "FileSet",
+                "id" => "9ad621a7b-01ea-4895-9c3d-a8c6eaab4013",
                 "metadata" => %{
                   "file_metadata" => [
                     # Not this one - it's an old JP2
@@ -80,6 +81,46 @@ defmodule DpulCollections.IndexingPipeline.Figgy.HydrationCacheEntryTest do
              ]
     end
 
+    test "can handle when members do not have the correct file metadata type" do
+      {:ok, entry} =
+        IndexingPipeline.write_hydration_cache_entry(%{
+          cache_version: 0,
+          record_id: "0cff895a-01ea-4895-9c3d-a8c6eaab4013",
+          source_cache_order: ~U[2018-03-09 20:19:35.465203Z],
+          related_data: %{
+            "member_ids" => %{
+              "1" => %{
+                "internal_resource" => "FileSet",
+                "id" => "9ad621a7b-01ea-4895-9c3d-a8c6eaab4013",
+                "metadata" => %{
+                  "file_metadata" => [
+                    # PDF member
+                    %{
+                      "id" => %{"id" => "0cff895a-01ea-4895-9c3d-a8c6eaab4017"},
+                      "internal_resource" => "FileMetadata",
+                      "mime_type" => ["application/pdf"],
+                      "use" => [%{"@id" => "http://pcdm.org/use#ServiceFile"}]
+                    }
+                  ]
+                }
+              }
+            }
+          },
+          data: %{
+            "id" => "0cff895a-01ea-4895-9c3d-a8c6eaab4013",
+            "internal_resource" => "EphemeraFolder",
+            "metadata" => %{
+              "member_ids" => [%{"id" => "1"}],
+              "title" => ["test title 4"]
+            }
+          }
+        })
+
+      doc = HydrationCacheEntry.to_solr_document(entry)
+
+      assert doc[:image_service_urls_ss] == []
+    end
+
     test "includes date range if found, date if not" do
       entries =
         FiggyTestFixtures.hydration_cache_entries()