diff --git a/.gitignore b/.gitignore
index 2e16569097..78b1a75843 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,6 +18,7 @@
 *.pch
 *.pdb
 *.rej
+*.s
 *.sav
 *.swp
 *.yarb
@@ -138,6 +139,9 @@ lcov*.info
 /enc/jis/props.h
 /enc/unicode/data
 
+# /coroutine/
+!/coroutine/**/*.s
+
 # /enc/trans/
 /enc/trans/*.c
 /enc/trans/*.def