diff --git a/src/iw4x.rs b/src/iw4x.rs
index 0fa52aa..6832312 100644
--- a/src/iw4x.rs
+++ b/src/iw4x.rs
@@ -4,6 +4,7 @@ use crate::http_async;
 use crate::misc;
 use crate::structs;
 
+use std::fs;
 use std::path::Path;
 
 pub async fn remote_revision() -> u16 {
@@ -36,4 +37,5 @@ pub async fn update(dir: &Path, cache: &mut structs::Cache) {
     .unwrap();
 
     cache.iw4x_revision = format!("r{remote}");
+    fs::write(dir.join(".iw4xrevision"), &cache.iw4x_revision).unwrap();
 }
diff --git a/src/main.rs b/src/main.rs
index 2fa3c71..02b037e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -324,7 +324,7 @@ async fn update(
         std::process::exit(0);
     }
 
-    let old_files = [".sha-sums", ".iw4xrevision"];
+    let old_files = [".sha-sums"];
     for f in old_files {
         if dir.join(f).exists() {
             match fs::remove_file(dir.join(f)) {