diff --git a/guidelines/sc/20/sign-language-prerecorded.html b/guidelines/sc/20/sign-language-prerecorded.html
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--- a/guidelines/sc/20/sign-language-prerecorded.html
+++ b/guidelines/sc/20/sign-language-prerecorded.html
@@ -1,4 +1,4 @@
-<section id=sign-language-prerecorded" class="sc">
+<section id="sign-language-prerecorded" class="sc">
    
    <h4>Sign Language (Prerecorded)</h4>