diff --git a/cranelift/.gitignore b/cranelift/.gitignore
index 14318728b6..a481ff48e8 100644
--- a/cranelift/.gitignore
+++ b/cranelift/.gitignore
@@ -2,6 +2,7 @@
 *.bk
 *.swp
 *.swo
+*.swx
 tags
 target
 Cargo.lock