diff --git a/mod/forum/pix/i/pinned.svg b/mod/forum/pix/i/pinned.svg
index 5a09f9a29ce..61d5cd92f88 100644
--- a/mod/forum/pix/i/pinned.svg
+++ b/mod/forum/pix/i/pinned.svg
@@ -2,7 +2,7 @@
 <!-- Generator: Adobe Illustrator 18.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
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 <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
-	 viewBox="-0.8 0 16 16" enable-background="new -0.8 0 16 16" xml:space="preserve" width="16px" height="16px">
+	 viewBox="-0.8 0 16 16" enable-background="new -0.8 0 16 16" xml:space="preserve" width="16px" height="16px" preserveAspectRatio="xMinYMid meet">
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