diff --git a/gradlew b/gradlew
old mode 100644
new mode 100755
diff --git a/src/main/groovy/org/beryx/runtime/impl/JPackageImageTaskImpl.groovy b/src/main/groovy/org/beryx/runtime/impl/JPackageImageTaskImpl.groovy
index 7b9ca4ee..cb443d92 100644
--- a/src/main/groovy/org/beryx/runtime/impl/JPackageImageTaskImpl.groovy
+++ b/src/main/groovy/org/beryx/runtime/impl/JPackageImageTaskImpl.groovy
@@ -56,7 +56,6 @@ class JPackageImageTaskImpl extends BaseTaskImpl<JPackageTaskData> {
                            '--main-class', jpd.mainClass,
                            '--output', outputDir,
                            '--name', jpd.imageName,
-                           '--identifier', jpd.identifier ?: jpd.mainClass,
                            '--runtime-image', td.runtimeImageDir,
                            *(jpd.jvmArgs ? jpd.jvmArgs.collect{['--java-options', adjustArg(it)]}.flatten() : []),
                            *jpd.imageOptions]
diff --git a/src/main/groovy/org/beryx/runtime/impl/JPackageTaskImpl.groovy b/src/main/groovy/org/beryx/runtime/impl/JPackageTaskImpl.groovy
index 5b0322d1..a998d475 100644
--- a/src/main/groovy/org/beryx/runtime/impl/JPackageTaskImpl.groovy
+++ b/src/main/groovy/org/beryx/runtime/impl/JPackageTaskImpl.groovy
@@ -66,6 +66,7 @@ class JPackageTaskImpl extends BaseTaskImpl<JPackageTaskData> {
                                '--package-type', packageType,
                                '--output', td.jpackageData.getInstallerOutputDir(),
                                '--name', jpd.installerName,
+                               '--identifier', jpd.identifier ?: jpd.mainClass,
                                '--app-image', "$appImagePath",
                                *jpd.installerOptions]
             }