diff --git a/src/plugins/cmakeprojectmanager/cmakeproject.cpp b/src/plugins/cmakeprojectmanager/cmakeproject.cpp
index 3c75de9d133..ed103999f8d 100644
--- a/src/plugins/cmakeprojectmanager/cmakeproject.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakeproject.cpp
@@ -553,6 +553,7 @@ QStringList CMakeProject::files(FilesMode fileMode) const
             case ProjectExplorer::Project::GeneratedFiles:
                 return isGenerated;
             case ProjectExplorer::Project::AllFiles:
+            default:
                 return true;
             }
         });