diff --git a/src/plugins/cmakeprojectmanager/cmakeproject.cpp b/src/plugins/cmakeprojectmanager/cmakeproject.cpp
index 9339591c939..7310697596c 100644
--- a/src/plugins/cmakeprojectmanager/cmakeproject.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakeproject.cpp
@@ -310,13 +310,15 @@ QString CMakeProject::displayName() const
 QStringList CMakeProject::files(FilesMode fileMode) const
 {
     QStringList result;
-    rootProjectNode()->forEachNode([&](const FileNode *fn) {
-        const bool isGenerated = fn->isGenerated();
-        if (fileMode == Project::SourceFiles && !isGenerated)
-            result.append(fn->filePath().toString());
-        if (fileMode == Project::GeneratedFiles && isGenerated)
-            result.append(fn->filePath().toString());
-    });
+    if (ProjectNode *rpn = rootProjectNode()) {
+        rpn->forEachNode([&](const FileNode *fn) {
+            const bool isGenerated = fn->isGenerated();
+            if (fileMode == Project::SourceFiles && !isGenerated)
+                result.append(fn->filePath().toString());
+            if (fileMode == Project::GeneratedFiles && isGenerated)
+                result.append(fn->filePath().toString());
+        });
+    }
     return result;
 }