diff --git a/src/applications/pholio/lipsum/PhabricatorPholioMockTestDataGenerator.php b/src/applications/pholio/lipsum/PhabricatorPholioMockTestDataGenerator.php
index 0cdf812ee7..a9cfdb6bb6 100644
--- a/src/applications/pholio/lipsum/PhabricatorPholioMockTestDataGenerator.php
+++ b/src/applications/pholio/lipsum/PhabricatorPholioMockTestDataGenerator.php
@@ -90,11 +90,14 @@ final class PhabricatorPholioMockTestDataGenerator
     $rand_images = array();
     $quantity = rand(2, 10);
     $quantity = min($quantity, count($images));
-    foreach (array_rand($images, $quantity) as $random) {
-      $rand_images[] = $images[$random]->getPHID();
+
+    if ($quantity) {
+      foreach (array_rand($images, $quantity) as $random) {
+        $rand_images[] = $images[$random]->getPHID();
+      }
     }
-    // this means you don't have any jpegs yet. we'll
-    // just use a builtin image
+
+    // This means you don't have any JPEGs yet. We'll just use a built-in image.
     if (empty($rand_images)) {
       $default = PhabricatorFile::loadBuiltin(
         PhabricatorUser::getOmnipotentUser(),