diff --git a/initializr-web/src/main/java/io/spring/initializr/web/project/ProjectGenerationInvoker.java b/initializr-web/src/main/java/io/spring/initializr/web/project/ProjectGenerationInvoker.java
index 52e5f88b..229efde6 100644
--- a/initializr-web/src/main/java/io/spring/initializr/web/project/ProjectGenerationInvoker.java
+++ b/initializr-web/src/main/java/io/spring/initializr/web/project/ProjectGenerationInvoker.java
@@ -47,6 +47,7 @@ import org.springframework.util.FileSystemUtils;
  *
  * @param <R> the concrete {@link ProjectRequest} type
  * @author Madhura Bhave
+ * @see ProjectAssetGenerator
  */
 public class ProjectGenerationInvoker<R extends ProjectRequest> {
 
@@ -56,6 +57,8 @@ public class ProjectGenerationInvoker<R extends ProjectRequest> {
 
 	private final ProjectRequestToDescriptionConverter<R> requestConverter;
 
+	private final ProjectAssetGenerator<Path> projectAssetGenerator = new DefaultProjectAssetGenerator();
+
 	private final transient Map<Path, List<Path>> temporaryFiles = new ConcurrentHashMap<>();
 
 	public ProjectGenerationInvoker(ApplicationContext parentApplicationContext,
@@ -82,7 +85,8 @@ public class ProjectGenerationInvoker<R extends ProjectRequest> {
 			ProjectDescription description = this.requestConverter.convert(request, metadata);
 			ProjectGenerator projectGenerator = new ProjectGenerator((
 					projectGenerationContext) -> customizeProjectGenerationContext(projectGenerationContext, metadata));
-			ProjectGenerationResult result = projectGenerator.generate(description, generateProject(request));
+			ProjectGenerationResult result = projectGenerator.generate(description,
+					generateProject(description, request));
 			addTempFile(result.getRootDirectory(), result.getRootDirectory());
 			return result;
 		}
@@ -92,14 +96,24 @@ public class ProjectGenerationInvoker<R extends ProjectRequest> {
 		}
 	}
 
-	private ProjectAssetGenerator<ProjectGenerationResult> generateProject(R request) {
+	private ProjectAssetGenerator<ProjectGenerationResult> generateProject(ProjectDescription description, R request) {
 		return (context) -> {
-			Path projectDir = new DefaultProjectAssetGenerator().generate(context);
+			Path projectDir = getProjectAssetGenerator(description).generate(context);
 			publishProjectGeneratedEvent(request, context);
 			return new ProjectGenerationResult(context.getBean(ProjectDescription.class), projectDir);
 		};
 	}
 
+	/**
+	 * Return the {@link ProjectAssetGenerator} to use to generate the project structure
+	 * for the specified {@link ProjectDescription}.
+	 * @param description the project description
+	 * @return an asset generator for the specified request
+	 */
+	protected ProjectAssetGenerator<Path> getProjectAssetGenerator(ProjectDescription description) {
+		return this.projectAssetGenerator;
+	}
+
 	/**
 	 * Invokes the project generation API that knows how to just write the build file.
 	 * Returns a directory containing the project for the specified
diff --git a/initializr-web/src/test/java/io/spring/initializr/web/project/ProjectGenerationInvokerTests.java b/initializr-web/src/test/java/io/spring/initializr/web/project/ProjectGenerationInvokerTests.java
index 4419273e..948c48ac 100644
--- a/initializr-web/src/test/java/io/spring/initializr/web/project/ProjectGenerationInvokerTests.java
+++ b/initializr-web/src/test/java/io/spring/initializr/web/project/ProjectGenerationInvokerTests.java
@@ -22,9 +22,12 @@ import java.nio.file.Path;
 import java.util.List;
 import java.util.Map;
 
+import io.spring.initializr.generator.buildsystem.maven.MavenBuildSystem;
 import io.spring.initializr.generator.io.IndentingWriterFactory;
 import io.spring.initializr.generator.io.SimpleIndentStrategy;
 import io.spring.initializr.generator.io.template.MustacheTemplateRenderer;
+import io.spring.initializr.generator.project.ProjectAssetGenerator;
+import io.spring.initializr.generator.project.ProjectDescription;
 import io.spring.initializr.generator.project.ProjectDirectoryFactory;
 import io.spring.initializr.generator.test.InitializrMetadataTestBuilder;
 import io.spring.initializr.generator.test.buildsystem.gradle.GroovyDslGradleBuildAssert;
@@ -169,6 +172,26 @@ public class ProjectGenerationInvokerTests {
 		assertThat(result.getRootDirectory()).doesNotExist();
 	}
 
+	@Test
+	void invokeProjectStructureGenerationWithCustomAssetGenerator(@TempDir Path directory) {
+		WebProjectRequest webRequest = new WebProjectRequest();
+		webRequest.initialize(metadata);
+		webRequest.setGroupId("org.acme.test");
+		webRequest.setType("maven-project");
+		ProjectGenerationResult result = new ProjectGenerationInvoker<ProjectRequest>(this.context, this.eventPublisher,
+				new DefaultProjectRequestToDescriptionConverter()) {
+			@Override
+			protected ProjectAssetGenerator<Path> getProjectAssetGenerator(ProjectDescription description) {
+				assertThat(description.getBuildSystem()).isInstanceOf(MavenBuildSystem.class);
+				assertThat(description.getGroupId()).isEqualTo("org.acme.test");
+				return (context) -> directory;
+			}
+		}.invokeProjectStructureGeneration(webRequest);
+		assertThat(result.getRootDirectory()).isSameAs(directory);
+		assertThat(result.getRootDirectory()).isEmptyDirectory();
+		verifyProjectSuccessfulEventFor(webRequest);
+	}
+
 	private void setupContext() {
 		InitializrMetadataProvider metadataProvider = mock(InitializrMetadataProvider.class);
 		given(metadataProvider.get()).willReturn(InitializrMetadataTestBuilder.withDefaults().build());