diff --git a/img/app/flameshot.svg b/img/app/flameshot.svg
index 8138a773..49fc0436 100644
--- a/img/app/flameshot.svg
+++ b/img/app/flameshot.svg
@@ -1,4 +1,6 @@
-<svg viewBox="0 0 64 64">
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" viewBox="0 0 64 64" width="64" height="64">
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diff --git a/img/hicolor/scalable/apps/flameshot.svg b/img/hicolor/scalable/apps/flameshot.svg
index 8138a773..49fc0436 100644
--- a/img/hicolor/scalable/apps/flameshot.svg
+++ b/img/hicolor/scalable/apps/flameshot.svg
@@ -1,4 +1,6 @@
-<svg viewBox="0 0 64 64">
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" viewBox="0 0 64 64" width="64" height="64">
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