diff --git a/iso/builder/build.sh b/iso/builder/build.sh
index 0b2775b..cd01975 100755
--- a/iso/builder/build.sh
+++ b/iso/builder/build.sh
@@ -84,6 +84,15 @@ resolve_iso_version() {
             ;;
     esac
 
+    # Also accept plain v* tags (e.g. v2, v2.1 used for GUI releases)
+    tag="$(git -C "${REPO_ROOT}" describe --tags --match 'v*' --abbrev=7 --dirty 2>/dev/null || true)"
+    case "${tag}" in
+        v*)
+            echo "${tag#v}"
+            return 0
+            ;;
+    esac
+
     # Fall back to audit version so the name is still meaningful
     resolve_audit_version
 }