diff --git a/src/plugins/cmakeprojectmanager/cmakeprojectnodes.cpp b/src/plugins/cmakeprojectmanager/cmakeprojectnodes.cpp
index f5e176f3ec2..64541593b97 100644
--- a/src/plugins/cmakeprojectmanager/cmakeprojectnodes.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakeprojectnodes.cpp
@@ -196,6 +196,11 @@ QString CMakeTargetNode::tooltip() const
     return m_tooltip;
 }
 
+QString CMakeTargetNode::buildKey() const
+{
+    return QString::fromUtf8(id());
+}
+
 bool CMakeTargetNode::supportsAction(ProjectExplorer::ProjectAction action,
                                      const ProjectExplorer::Node *) const
 {
diff --git a/src/plugins/cmakeprojectmanager/cmakeprojectnodes.h b/src/plugins/cmakeprojectmanager/cmakeprojectnodes.h
index 1ca2151ff54..0c8174c10e0 100644
--- a/src/plugins/cmakeprojectmanager/cmakeprojectnodes.h
+++ b/src/plugins/cmakeprojectmanager/cmakeprojectnodes.h
@@ -72,6 +72,7 @@ public:
 
     bool showInSimpleTree() const final;
     QString tooltip() const final;
+    QString buildKey() const final;
 
     bool supportsAction(ProjectExplorer::ProjectAction action, const Node *node) const override;
     bool addFiles(const QStringList &filePaths, QStringList *notAdded) override;