diff --git a/SC3010.md b/SC3010.md
index 4a3aa19..b599aea 100644
--- a/SC3010.md
+++ b/SC3010.md
@@ -1,4 +1,3 @@
-
-    In POSIX sh, [[ ]] is undefined.
+## In POSIX sh, `[[ ]]` is undefined.
 
 POSIX sh uses `[ ]` instead. To see the limitations/differences, view http://mywiki.wooledge.org/BashFAQ/031 
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