diff --git a/scm-webapp/src/main/java/sonia/scm/api/v2/resources/PluginDto.java b/scm-webapp/src/main/java/sonia/scm/api/v2/resources/PluginDto.java
index 4dce1e9e92..282b9860b3 100644
--- a/scm-webapp/src/main/java/sonia/scm/api/v2/resources/PluginDto.java
+++ b/scm-webapp/src/main/java/sonia/scm/api/v2/resources/PluginDto.java
@@ -53,6 +53,7 @@ public class PluginDto extends HalRepresentation {
   private Boolean core;
   private Boolean markedForUninstall;
   private Set<String> dependencies;
+  private Set<String> optionalDependencies;
 
   public PluginDto(Links links) {
     add(links);
diff --git a/scm-webapp/src/main/java/sonia/scm/api/v2/resources/PluginDtoMapper.java b/scm-webapp/src/main/java/sonia/scm/api/v2/resources/PluginDtoMapper.java
index 1d71735278..0156a976ec 100644
--- a/scm-webapp/src/main/java/sonia/scm/api/v2/resources/PluginDtoMapper.java
+++ b/scm-webapp/src/main/java/sonia/scm/api/v2/resources/PluginDtoMapper.java
@@ -68,6 +68,7 @@ public abstract class PluginDtoMapper {
 
   private void map(PluginDto dto, Plugin plugin) {
     dto.setDependencies(plugin.getDescriptor().getDependencies());
+    dto.setOptionalDependencies(plugin.getDescriptor().getOptionalDependencies());
     map(plugin.getDescriptor().getInformation(), dto);
     if (dto.getCategory() == null) {
       dto.setCategory("Miscellaneous");
diff --git a/scm-webapp/src/test/java/sonia/scm/api/v2/resources/PluginDtoMapperTest.java b/scm-webapp/src/test/java/sonia/scm/api/v2/resources/PluginDtoMapperTest.java
index 7c3c3975c0..9a6b51db7a 100644
--- a/scm-webapp/src/test/java/sonia/scm/api/v2/resources/PluginDtoMapperTest.java
+++ b/scm-webapp/src/test/java/sonia/scm/api/v2/resources/PluginDtoMapperTest.java
@@ -164,6 +164,15 @@ class PluginDtoMapperTest {
     assertThat(dto.getDependencies()).containsOnly("one", "two");
   }
 
+  @Test
+  void shouldAppendOptionalDependencies() {
+    AvailablePlugin plugin = createAvailable(createPluginInformation());
+    when(plugin.getDescriptor().getOptionalDependencies()).thenReturn(ImmutableSet.of("one", "two"));
+
+    PluginDto dto = mapper.mapAvailable(plugin);
+    assertThat(dto.getOptionalDependencies()).containsOnly("one", "two");
+  }
+
   @Test
   void shouldAppendUninstallLink() {
     when(subject.isPermitted("plugin:write")).thenReturn(true);