diff --git a/distrho/extra/FileBrowserDialog.cpp b/distrho/extra/FileBrowserDialog.cpp
index 01e57b9c..a9bfd1d3 100644
--- a/distrho/extra/FileBrowserDialog.cpp
+++ b/distrho/extra/FileBrowserDialog.cpp
@@ -22,6 +22,7 @@
 # import <Cocoa/Cocoa.h>
 #endif
 #ifdef DISTRHO_OS_WINDOWS
+# include <commdlg.h>
 # include <direct.h>
 # include <process.h>
 # include <winsock2.h>