diff --git a/docs/reference/module-types/maven-container.md b/docs/reference/module-types/maven-container.md
index d3bd5d72ab..fbe991c3db 100644
--- a/docs/reference/module-types/maven-container.md
+++ b/docs/reference/module-types/maven-container.md
@@ -583,6 +583,14 @@ The JDK version to use.
 | Type | Required |
 | ---- | -------- |
 | `number` | No
+### `module.mvnOpts[]`
+[module](#module) > mvnOpts
+
+Options to add to the `mvn package` command when building.
+
+| Type | Required |
+| ---- | -------- |
+| `array[string]` | No
 
 
 ## Complete YAML schema
@@ -648,4 +656,5 @@ module:
       env: {}
   jarPath:
   jdkVersion: 8
+  mvnOpts: []
 ```
diff --git a/garden-service/src/plugins/maven-container/maven-container.ts b/garden-service/src/plugins/maven-container/maven-container.ts
index 2197844f6c..ba19bf207d 100644
--- a/garden-service/src/plugins/maven-container/maven-container.ts
+++ b/garden-service/src/plugins/maven-container/maven-container.ts
@@ -102,7 +102,7 @@ async function configure(params: ConfigureModuleParams<MavenContainerModule>) {
   const jdkVersion = mavenFields.jdkVersion!
 
   containerConfig.spec.buildArgs = {
-    JAR_PATH: mavenFields.jarPath!,
+    JAR_PATH: "app.jar",
     JDK_VERSION: jdkVersion.toString(),
   }