diff --git a/src/plugins/qmlprojectmanager/qmlprojectconstants.h b/src/plugins/qmlprojectmanager/qmlprojectconstants.h
index 4ec86aac9ec..4ef3170fd9c 100644
--- a/src/plugins/qmlprojectmanager/qmlprojectconstants.h
+++ b/src/plugins/qmlprojectmanager/qmlprojectconstants.h
@@ -36,7 +36,7 @@ namespace QmlProjectManager {
 namespace Constants {
 
 const char PROJECTCONTEXT[]     = "QmlProject.ProjectContext";
-const char QMLPROJECT_MIMETYPE[]        = QmlJSTools::Constants::QMLPROJECT_MIMETYPE;
+static const char *QMLPROJECT_MIMETYPE = QmlJSTools::Constants::QMLPROJECT_MIMETYPE;
 
 } // namespace Constants
 } // namespace QmlProjectManager