diff --git a/pkgs/development/tools/apksigner/default.nix b/pkgs/development/tools/apksigner/default.nix
index e7afa7189c2..854e913dd58 100644
--- a/pkgs/development/tools/apksigner/default.nix
+++ b/pkgs/development/tools/apksigner/default.nix
@@ -23,6 +23,7 @@ stdenv.mkDerivation rec {
     cat >> build.gradle <<EOF
 
     apply plugin: 'application'
+    mainClassName = "com.android.apksigner.ApkSignerTool"
     sourceSets.main.java.srcDirs = [ 'src/apksigner/java', 'src/main/java' ]
     jar {
         manifest { attributes "Main-Class": "com.android.apksigner.ApkSignerTool" }