diff --git a/ui/drivers/ui_cocoa.m b/ui/drivers/ui_cocoa.m
index 1b1f531f17..47897c3a82 100644
--- a/ui/drivers/ui_cocoa.m
+++ b/ui/drivers/ui_cocoa.m
@@ -397,6 +397,7 @@ static void open_document_handler(ui_browser_window_state_t *state, bool result)
         bool result = browser->open(&browser_state);
         open_document_handler(&browser_state, result);
         
+        free(browser_state.startdir);
         free(browser_state.title);
     }
 }