diff --git a/src/deb/local.rs b/src/deb/local.rs
index 9743b3e..8a5249b 100644
--- a/src/deb/local.rs
+++ b/src/deb/local.rs
@@ -135,11 +135,21 @@ pub async fn build(
         }
     }
 
-    // UBUNTU: Ensure 'universe' repository is enabled
-    for source in &mut sources {
-        if source.uri.contains("ubuntu") && !source.components.contains(&"universe".to_string()) {
-            source.components.push("universe".to_string());
-            modified = true;
+    // UBUNTU: Ensure the 'universe' component is enabled on official
+    // Ubuntu sources (many build dependencies live there). The old
+    // `uri.contains("ubuntu")` gate also caught third-party repositories
+    // whose URL merely mentions Ubuntu; the mirror-data check leaves them
+    // alone. 'universe' is only added when Ubuntu's component list still
+    // carries it.
+    let ubuntu_components = crate::distro_info::get_dist_components("ubuntu")?;
+    if ubuntu_components.iter().any(|c| c == "universe") {
+        for source in &mut sources {
+            if crate::distro_info::is_official_source("ubuntu", &source.uri)
+                && !source.components.contains(&"universe".to_string())
+            {
+                source.components.push("universe".to_string());
+                modified = true;
+            }
         }
     }
 
diff --git a/src/deb/mod.rs b/src/deb/mod.rs
index c051a8b..3b197c9 100644
--- a/src/deb/mod.rs
+++ b/src/deb/mod.rs
@@ -366,12 +366,15 @@ fn find_dsc_file(
 }
 
 /// Check whether an apt source URI points to a distribution archive
-/// (as opposed to a PPA or another third-party repository)
+/// (as opposed to a PPA or another third-party repository): a thin,
+/// dist-agnostic wrapper over [`crate::distro_info::is_official_source`],
+/// unioned across every known distro. Where the distribution is known,
+/// the dist-scoped check is preferred (it cannot misfire on another
+/// distro's mirror); this fallback stays for the sites that cannot know.
 pub(crate) fn is_archive_source(uri: &str) -> bool {
-    uri.contains("archive.ubuntu.com")
-        || uri.contains("security.ubuntu.com")
-        || uri.contains("ports.ubuntu.com")
-        || uri.contains("deb.debian.org")
+    crate::distro_info::supported_dists()
+        .iter()
+        .any(|dist| crate::distro_info::is_official_source(dist, uri))
 }
 
 #[cfg(test)]
@@ -379,6 +382,31 @@ mod tests {
     use super::*;
     use std::sync::Arc;
 
+    /// The archive check is dist-agnostic (any distro's official mirror
+    /// counts) and host-based: the country mirrors the old substring
+    /// checks matched (`fr.archive.ubuntu.com`) still count, look-alike
+    /// hosts and PPAs do not.
+    #[test]
+    fn archive_sources_are_official_mirrors_of_any_distro() {
+        for uri in [
+            "https://archive.ubuntu.com/ubuntu",
+            // Country mirrors front the Ubuntu archive.
+            "http://fr.archive.ubuntu.com/ubuntu",
+            "http://security.ubuntu.com/ubuntu",
+            "http://ports.ubuntu.com/ubuntu-ports",
+            "https://deb.debian.org/debian",
+        ] {
+            assert!(is_archive_source(uri), "{uri}");
+        }
+        for uri in [
+            "https://ppa.launchpadcontent.net/user/ppa/ubuntu",
+            "http://notarchive.ubuntu.com/ubuntu",
+            "https://example.com/debian",
+        ] {
+            assert!(!is_archive_source(uri), "{uri}");
+        }
+    }
+
     async fn test_build_end_to_end(
         package: &str,
         series: &str,