diff --git a/src/plugins/autotest/testframeworkmanager.cpp b/src/plugins/autotest/testframeworkmanager.cpp
index 0ce72fe282d..4726d2e02e1 100644
--- a/src/plugins/autotest/testframeworkmanager.cpp
+++ b/src/plugins/autotest/testframeworkmanager.cpp
@@ -46,7 +46,7 @@ static Q_LOGGING_CATEGORY(LOG, "qtc.autotest.frameworkmanager")
 namespace Autotest {
 namespace Internal {
 
-TestFrameworkManager *s_instance = nullptr;
+static TestFrameworkManager *s_instance = nullptr;
 
 TestFrameworkManager::TestFrameworkManager()
 {