diff --git a/content/html/document/src/nsImageDocument.cpp b/content/html/document/src/nsImageDocument.cpp
index fcdb2824ba0..e60467b8219 100644
--- a/content/html/document/src/nsImageDocument.cpp
+++ b/content/html/document/src/nsImageDocument.cpp
@@ -384,6 +384,7 @@ nsImageDocument::OnStartContainer(imgIRequest* aRequest, imgIContainer* aImage)
   if (mImageResizingEnabled) {
     CheckOverflowing();
   }
+  UpdateTitleAndCharset();
 
   return NS_OK;
 }