diff --git a/pages/common/sed.md b/pages/common/sed.md
index b4054c9a7..51b1dcc22 100644
--- a/pages/common/sed.md
+++ b/pages/common/sed.md
@@ -6,6 +6,10 @@
 
 `sed 's/{{find}}/{{replace}}/' {{filename}}`
 
+- Replace only on lines matching the line pattern:
+
+`sed '/{{line_pattern}}/s/{{find}}/{{replace}}/'`
+
 - Replace all occurrences of a string in a file, overwriting the file (i.e. in-place):
 
 `sed -i 's/{{find}}/{{replace}}/g' {{filename}}`