diff --git a/src/github.rs b/src/github.rs
index 4383f6b..4573b63 100644
--- a/src/github.rs
+++ b/src/github.rs
@@ -9,13 +9,12 @@ pub fn latest_tag(owner: &str, repo: &str) -> String {
         .as_str(),
     );
     let github_json: serde_json::Value = serde_json::from_str(&github_body).unwrap();
-    github_json["tag_name"]
-        .to_string()
-        .replace(['v', '"'].as_ref(), "")
+    github_json["tag_name"].to_string().replace('"', "")
 }
 
 pub fn latest_version(owner: &str, repo: &str) -> Version {
-    Version::parse(&latest_tag(owner, repo)).unwrap()
+    let tag = latest_tag(owner, repo).replace('v', "");
+    Version::parse(&tag).unwrap()
 }
 
 pub fn latest_release_url(owner: &str, repo: &str) -> String {
diff --git a/src/global.rs b/src/global.rs
index d75f49a..2c40be4 100644
--- a/src/global.rs
+++ b/src/global.rs
@@ -2,4 +2,4 @@ pub const MASTER: &str = "https://master.alterware.dev";
 pub const GH_OWNER: &str = "mxve";
 pub const GH_REPO: &str = "alterware-launcher";
 pub const GH_IW4X_OWNER: &str = "iw4x";
-pub const GH_IW4X_REPO: &str = "iw4x-client";
\ No newline at end of file
+pub const GH_IW4X_REPO: &str = "iw4x-client";
diff --git a/src/iw4x.rs b/src/iw4x.rs
index 047ff08..4d03e99 100644
--- a/src/iw4x.rs
+++ b/src/iw4x.rs
@@ -1,7 +1,7 @@
 use crate::github;
+use crate::global::*;
 use crate::http;
 use crate::misc;
-use crate::global::*;
 
 use std::{fs, path::Path};
 
@@ -17,27 +17,21 @@ pub fn remote_revision() -> u16 {
     misc::rev_to_int(&github::latest_tag(GH_IW4X_OWNER, GH_IW4X_REPO))
 }
 
-pub fn update_available(dir: &Path) -> bool {
-    if !dir.join("iw4x.dll").exists() {
-        return true;
-    }
-    local_revision(dir) < remote_revision()
-}
-
 pub fn update(dir: &Path) {
-    if update_available(dir) {
-        println!("Updating IW4x...");
-        http::download_file(
-            &format!(
-                "{}/download/iw4x.dll",
-                github::latest_release_url(GH_IW4X_OWNER, GH_IW4X_REPO)
-            ),
-            &dir.join("iw4x.dll"),
-        );
-        fs::write(
-            dir.join(".iw4xrevision"),
-            github::latest_tag(GH_IW4X_OWNER, GH_IW4X_REPO),
-        )
-        .unwrap();
+    let remote = remote_revision();
+    let local = local_revision(dir);
+
+    if remote <= local && dir.join("iw4x.dll").exists() {
+        return;
     }
+
+    println!("Updating IW4x...");
+    http::download_file(
+        &format!(
+            "{}/download/iw4x.dll",
+            github::latest_release_url(GH_IW4X_OWNER, GH_IW4X_REPO)
+        ),
+        &dir.join("iw4x.dll"),
+    );
+    fs::write(dir.join(".iw4xrevision"), format!("r{}", remote)).unwrap();
 }
diff --git a/src/misc.rs b/src/misc.rs
index e840b99..78fab2c 100644
--- a/src/misc.rs
+++ b/src/misc.rs
@@ -13,5 +13,8 @@ pub fn stdin() -> String {
 }
 
 pub fn rev_to_int(rev: &str) -> u16 {
-    rev.strip_prefix('r').unwrap().parse::<u16>().unwrap_or(0)
+    rev.strip_prefix('r')
+        .unwrap_or("0")
+        .parse::<u16>()
+        .unwrap_or(0)
 }
diff --git a/src/self_update.rs b/src/self_update.rs
index 8ce4b3e..ca6dd1d 100644
--- a/src/self_update.rs
+++ b/src/self_update.rs
@@ -16,7 +16,10 @@ pub fn self_update_available() -> bool {
 pub fn run(_update_only: bool) {
     if self_update_available() {
         println!("A new version of the AlterWare launcher is available.");
-        println!("Download it at {}", github::latest_release_url(GH_OWNER, GH_REPO));
+        println!(
+            "Download it at {}",
+            github::latest_release_url(GH_OWNER, GH_REPO)
+        );
         println!("Launching in 10 seconds..");
         thread::sleep(time::Duration::from_secs(10));
     }