diff --git a/mod/quiz/pix/navflagged.png b/mod/quiz/pix/navflagged.png
deleted file mode 100644
index 9b9fcb50335..00000000000
Binary files a/mod/quiz/pix/navflagged.png and /dev/null differ
diff --git a/mod/quiz/pix/navflagged.svg b/mod/quiz/pix/navflagged.svg
index 95992374b7e..dc5a1feeea8 100644
--- a/mod/quiz/pix/navflagged.svg
+++ b/mod/quiz/pix/navflagged.svg
@@ -1 +1 @@
-
+