--- a/MIMETypes.st	Wed Feb 14 12:57:48 2018 +0100
+++ b/MIMETypes.st	Wed Feb 14 22:31:19 2018 +0100
@@ -645,7 +645,7 @@
         'bat'                        'application/x-batch-script'
         ('asn1' 'x409' 'gdmo' 'gdm') 'application/x-asn1-source'
 
-        ('scm' 'ss' 
+        ('scm' 'ss' 'sch'
          'arc' 'brg' 'rkt')          'application/x-scheme-source'
 
         ('lisp' 'lsp' 'cl' )         'application/x-lisp-source'