diff --git a/platform/platform-resources/src/META-INF/ExternalSystemExtensions.xml b/platform/platform-resources/src/META-INF/ExternalSystemExtensions.xml
index 374d8c40b91e..a450d8d4ec48 100644
--- a/platform/platform-resources/src/META-INF/ExternalSystemExtensions.xml
+++ b/platform/platform-resources/src/META-INF/ExternalSystemExtensions.xml
@@ -19,8 +19,11 @@
     <externalSystemNotificationExtension implementation="com.intellij.openapi.externalSystem.service.notification.ExternalSystemNotificationExtensionImpl" />
 
     <!--Project structure management services-->
-    <applicationService serviceImplementation="com.intellij.openapi.externalSystem.service.project.manage.ProjectDataManager"/>
-    <projectService serviceImplementation="com.intellij.openapi.externalSystem.service.project.manage.ExternalProjectsManager" order="first"/>
+    <applicationService serviceInterface="com.intellij.openapi.externalSystem.service.project.ProjectDataManager"
+                        serviceImplementation="com.intellij.openapi.externalSystem.service.project.manage.ProjectDataManagerImpl"/>
+    <projectService serviceInterface="com.intellij.openapi.externalSystem.service.project.manage.ExternalProjectsManager"
+                    serviceImplementation="com.intellij.openapi.externalSystem.service.project.manage.ExternalProjectsManagerImpl"
+                    order="first"/>
     <projectService serviceImplementation="com.intellij.openapi.externalSystem.service.project.manage.ExternalProjectsDataStorage"/>
     <externalProjectDataService implementation="com.intellij.openapi.externalSystem.service.project.manage.ProjectDataServiceImpl"/>
     <externalProjectDataService implementation="com.intellij.openapi.externalSystem.service.project.manage.LibraryDataService"/>