diff --git a/tools/signapk/Android.bp b/tools/signapk/Android.bp
index c799dbf..f5b2ba7 100644
--- a/tools/signapk/Android.bp
+++ b/tools/signapk/Android.bp
@@ -16,7 +16,7 @@
 
 // the signapk tool (a .jar application used to sign packages)
 // ============================================================
-java_library_host {
+java_binary_host {
     name: "signapk",
     srcs: ["src/**/*.java"],
     manifest: "SignApk.mf",
@@ -32,6 +32,7 @@
     // The post-build signing tools need signapk.jar (and its shared libraries,
     // handled in their own Android.bp files)
     dist: {
+        tag: ".jar",
         targets: ["droidcore"],
     },
 }