diff --git a/scripts/markdown-to-markua.sh b/scripts/markdown-to-markua.sh
index 00b8414..81355b6 100755
--- a/scripts/markdown-to-markua.sh
+++ b/scripts/markdown-to-markua.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
 # Markua doesn't know what to do with 4 backticks (````), so convert to 3:
-find manuscript -type f -name "*.md" -print0 | xargs -0 sed "s/````/```/g"
+find manuscript -type f -name "*.md" -print0 | xargs -0 sed -i "s/\`\`\`\`/\`\`\`/g"
 
 # Do nothing, yet. This is where the sed magic will go