diff --git a/internal/desktop/gtk.go b/internal/desktop/gtk.go
index 70e1a714..4d009b9e 100644
--- a/internal/desktop/gtk.go
+++ b/internal/desktop/gtk.go
@@ -10,6 +10,9 @@ const (
 )
 
 func (manager *DesktopManagerCtx) DropFiles(x int, y int, files []string) {
+	mu.Lock()
+	defer mu.Unlock()
+
 	go gtk.DragWindow(files)
 
 	// TODO: Find a bettter way.
diff --git a/internal/desktop/manager.go b/internal/desktop/manager.go
index 2a1cde0d..62e5e3df 100644
--- a/internal/desktop/manager.go
+++ b/internal/desktop/manager.go
@@ -3,6 +3,7 @@ package desktop
 import (
 	"fmt"
 	"time"
+	"sync"
 
 	"github.com/kataras/go-events"
 	"github.com/rs/zerolog"
@@ -12,6 +13,8 @@ import (
 	"demodesk/neko/internal/desktop/xorg"
 )
 
+var mu = sync.Mutex{}
+
 type DesktopManagerCtx struct {
 	logger    zerolog.Logger
 	cleanup   *time.Ticker
diff --git a/internal/desktop/xorg.go b/internal/desktop/xorg.go
index e4564624..90faa4a2 100644
--- a/internal/desktop/xorg.go
+++ b/internal/desktop/xorg.go
@@ -1,14 +1,10 @@
 package desktop
 
 import (
-	"sync"
-
 	"demodesk/neko/internal/types"
 	"demodesk/neko/internal/desktop/xorg"
 )
 
-var mu = sync.Mutex{}
-
 func (manager *DesktopManagerCtx) Move(x, y int) {
 	xorg.Move(x, y)
 }