diff --git a/mxe-plugins/notwa/mpv.mk b/mxe-plugins/notwa/mpv.mk
index c752898..a13aa40 100644
--- a/mxe-plugins/notwa/mpv.mk
+++ b/mxe-plugins/notwa/mpv.mk
@@ -11,7 +11,7 @@ $(PKG)_DEPS     := cc ffmpeg fribidi lcms \
                    jpeg libpng luajit rubberband pthreads sdl2 $(BUILD)~waf
 
 define $(PKG)_BUILD
-    cd '$(1)' && DEST_OS=win32 TARGET=$(TARGET) '$(PREFIX)/$(BUILD)/bin/waf' \
+    cd '$(1)' && DEST_OS=win32 TARGET=$(TARGET) python3 '$(PREFIX)/$(BUILD)/bin/waf' \
         configure build install -j '$(JOBS)' \
         --prefix='$(PREFIX)/$(TARGET)' \
         $(if $(BUILD_STATIC), \