diff --git a/src/plugins/backends/snore/notifywidget.h b/src/plugins/backends/snore/notifywidget.h
index 7f7b3e7..2cc60c7 100644
--- a/src/plugins/backends/snore/notifywidget.h
+++ b/src/plugins/backends/snore/notifywidget.h
@@ -33,7 +33,7 @@ typedef struct {
 
 } SHARED_MEM_TYPE;
 
-Q_CONSTEXPR int SHARED_MEM_TYPE_REV()
+inline int SHARED_MEM_TYPE_REV()
 {
     return 2;
 }