diff --git a/lib/persistedmap/persistedmap.go b/lib/persistedmap/persistedmap.go
index e2f83688..76f27064 100644
--- a/lib/persistedmap/persistedmap.go
+++ b/lib/persistedmap/persistedmap.go
@@ -64,13 +64,13 @@ func (p *PersistedMap) flushRoutine() {
 }
 
 func (p *PersistedMap) flush() error {
-	p.mu.Lock()
-	defer p.mu.Unlock()
-
 	if !p.shouldSave {
 		return nil
 	}
 
+	p.mu.Lock()
+	defer p.mu.Unlock()
+
 	file, err := os.Create(p.filePath)
 	if err != nil {
 		return fmt.Errorf("failed to create file: %w", err)