diff --git a/src/doc/rustc-dev-guide/ci/sembr/src/main.rs b/src/doc/rustc-dev-guide/ci/sembr/src/main.rs
index d41a57d6f747..ebcd472d7012 100644
--- a/src/doc/rustc-dev-guide/ci/sembr/src/main.rs
+++ b/src/doc/rustc-dev-guide/ci/sembr/src/main.rs
@@ -80,6 +80,7 @@ fn ignore(line: &str, in_code_block: bool) -> bool {
     in_code_block
         || line.to_lowercase().contains("e.g.")
         || line.to_lowercase().contains("n.b.")
+        || line.contains(" etc.")
         || line.contains("i.e.")
         || line.contains("et. al")
         || line.contains('|')
@@ -189,6 +190,7 @@ fn test_sembr() {
 ignore | tables
 ignore e.g. and
 ignore i.e. and
+ignore etc. and
 ignore E.g. too
 - list. entry
  * list. entry
@@ -212,6 +214,7 @@ fn test_sembr() {
 ignore | tables
 ignore e.g. and
 ignore i.e. and
+ignore etc. and
 ignore E.g. too
 - list.
   entry