diff --git a/gfx/tests/crashtests/633322-1.html b/gfx/tests/crashtests/633322-1.html
new file mode 100644
index 000000000000..89b0aaa6121a
--- /dev/null
+++ b/gfx/tests/crashtests/633322-1.html
@@ -0,0 +1 @@
+ß
diff --git a/gfx/tests/crashtests/crashtests.list b/gfx/tests/crashtests/crashtests.list
index 0bc4adb59ef0..eca56f6db9f5 100644
--- a/gfx/tests/crashtests/crashtests.list
+++ b/gfx/tests/crashtests/crashtests.list
@@ -82,3 +82,4 @@ load 580233-1.html
load 580719-1.html
load 594654-1.xhtml
load 595727-1.html
+load 633322-1.html