diff --git a/mod/data/preset/imagegallery/csstemplate.css b/mod/data/preset/imagegallery/csstemplate.css
index ad3482603c3..7c755221999 100644
--- a/mod/data/preset/imagegallery/csstemplate.css
+++ b/mod/data/preset/imagegallery/csstemplate.css
@@ -36,6 +36,7 @@
   font-style: italic;
 }
 
-#singleimage {
+#singleimage img {
   width: 700px;
+  height: auto;
 }
\ No newline at end of file