diff --git a/pkgs/development/libraries/qt-5/5.15/default.nix b/pkgs/development/libraries/qt-5/5.15/default.nix
index c3ba9c94dc65..b1308159eb68 100644
--- a/pkgs/development/libraries/qt-5/5.15/default.nix
+++ b/pkgs/development/libraries/qt-5/5.15/default.nix
@@ -36,6 +36,14 @@ let
       ./qtbase.patch.d/0012-qtbase-tbd-frameworks.patch
 
       ./qtbase.patch.d/0014-aarch64-darwin.patch
+
+      # Fix typo that breaks build on Darwin
+      # FIXME: remove this once merged upstream
+      # See: https://invent.kde.org/qt/qt/qtbase/-/merge_requests/325
+      (fetchpatch {
+        url = "https://invent.kde.org/qt/qt/qtbase/-/commit/e84c0df50f51c61aa49b47823582b0f8de406e3d.patch";
+        hash = "sha256-d1RIY03E71aMzOOVtcIaMeariki/72QRekUne6P2D3M=";
+      })
     ] ++ [
       ./qtbase.patch.d/0003-qtbase-mkspecs.patch
       ./qtbase.patch.d/0004-qtbase-replace-libdir.patch