diff --git a/src/plugins/cmakeprojectmanager/cmakebuildsystem.cpp b/src/plugins/cmakeprojectmanager/cmakebuildsystem.cpp
index 94eeb5032e1..54de9efb68b 100644
--- a/src/plugins/cmakeprojectmanager/cmakebuildsystem.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakebuildsystem.cpp
@@ -1142,7 +1142,7 @@ QList<ProjectExplorer::ExtraCompiler *> CMakeBuildSystem::findExtraCompilers()
     // Find all files generated by any of the extra compilers, in a rather crude way.
     Project *p = project();
     const FilePaths fileList = p->files([&fileExtensions](const Node *n) {
-        if (!Project::SourceFiles(n))
+        if (!Project::SourceFiles(n) || !n->isEnabled()) // isEnabled excludes nodes from the file system tree
             return false;
         const QString fp = n->filePath().toString();
         const int pos = fp.lastIndexOf('.');