diff --git a/SC3015.md b/SC3015.md
index 132938a..6251ad5 100644
--- a/SC3015.md
+++ b/SC3015.md
@@ -41,4 +41,4 @@ None
 
 ### Related resources:
 
-* Help by adding links to BashFAQ, StackOverflow, man pages, POSIX, etc!
\ No newline at end of file
+* [Greg's Wiki - BashFAQ #41: How do I determine whether a variable contains a substring?](https://mywiki.wooledge.org/BashFAQ/041)
\ No newline at end of file