diff --git a/Makefile b/Makefile
index 9ae7b20..079f7f8 100644
--- a/Makefile
+++ b/Makefile
@@ -75,16 +75,28 @@ linux: install icon
 	@echo ""
 
 # ── Binaire Windows (via Wine + Python Windows) ──────────────────────────────
+# Le hook PyQt6 de pyinstaller-hooks-contrib introspecte QLibraryInfo pour
+# localiser Qt6/plugins/platforms au moment du build : sous Wine cette
+# introspection échoue silencieusement, donc qwindows.dll n'est jamais copié
+# et l'exe plante au lancement avec « no Qt platform plugin could be
+# initialized ». On force sa copie via --add-data.
+WINE_QT_PLUGINS := $(HOME)/.wine/drive_c/users/$(USER)/AppData/Local/Programs/Python/Python311/Lib/site-packages/PyQt6/Qt6/plugins
+
 windows: icon
 	@echo ""
 	@echo "  🪟  Compilation Windows (Wine + PyInstaller)…"
 	@echo ""
 	@which wine > /dev/null 2>&1 \
 		|| (echo "  ❌  Wine non installé → sudo apt install wine"; exit 1)
+	@test -f "$(WINE_QT_PLUGINS)/platforms/qwindows.dll" \
+		|| (echo "  ❌  qwindows.dll introuvable dans $(WINE_QT_PLUGINS)/platforms"; \
+		    echo "  → Installez PyQt6 dans Wine avec :  make setup-wine"; exit 1)
 	@wine $(WINE_PYTHON) -m PyInstaller $(PI_OPTS) \
 		--onefile \
 		--windowed \
 		--icon=$(ICON) \
+		--add-data "$(WINE_QT_PLUGINS)/platforms;PyQt6/Qt6/plugins/platforms" \
+		--add-data "$(WINE_QT_PLUGINS)/styles;PyQt6/Qt6/plugins/styles" \
 		$(SRC) \
 	|| (echo ""; \
 	    echo "  ❌  Échec : Python Windows introuvable dans Wine."; \