diff --git a/src/ui/gtk/native_theme_gtk.cc b/src/ui/gtk/native_theme_gtk.cc
index c4479f461..cf6d21aae 100644
--- a/src/ui/gtk/native_theme_gtk.cc
+++ b/src/ui/gtk/native_theme_gtk.cc
@@ -6,6 +6,7 @@
 
 #include "base/no_destructor.h"
 #include "base/strings/strcat.h"
+#include "base/command_line.h"
 #include "cc/paint/paint_canvas.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/color/color_id.h"