diff --git a/OpenDialog/cocoa.m b/OpenDialog/cocoa.m
index aeeb98aa..cfb2553a 100644
--- a/OpenDialog/cocoa.m
+++ b/OpenDialog/cocoa.m
@@ -5,6 +5,8 @@
 char *do_open_rom_dialog(void)
 {
     @autoreleasepool {
+        int stderr_fd = dup(STDERR_FILENO);
+        close(STDERR_FILENO);
         NSWindow *key = [NSApp keyWindow];
         NSOpenPanel *dialog = [NSOpenPanel openPanel];
         dialog.title = @"Open ROM";
@@ -12,6 +14,7 @@ char *do_open_rom_dialog(void)
         [dialog runModal];
         [key makeKeyAndOrderFront:nil];
         NSString *ret = [[[dialog URLs] firstObject] path];
+        dup2(stderr_fd, STDERR_FILENO);
         if (ret) {
             return strdup(ret.UTF8String);
         }
@@ -22,6 +25,8 @@ char *do_open_rom_dialog(void)
 char *do_open_folder_dialog(void)
 {
     @autoreleasepool {
+        int stderr_fd = dup(STDERR_FILENO);
+        close(STDERR_FILENO);
         NSWindow *key = [NSApp keyWindow];
         NSOpenPanel *dialog = [NSOpenPanel openPanel];
         dialog.title = @"Select Boot ROMs Folder";
@@ -30,6 +35,7 @@ char *do_open_folder_dialog(void)
         [dialog runModal];
         [key makeKeyAndOrderFront:nil];
         NSString *ret = [[[dialog URLs] firstObject] path];
+        dup2(stderr_fd, STDERR_FILENO);
         if (ret) {
             return strdup(ret.UTF8String);
         }