diff --git a/src/Makefile.mingw b/src/Makefile.mingw
index af5c4e83b..3caf662fc 100644
--- a/src/Makefile.mingw
+++ b/src/Makefile.mingw
@@ -61,7 +61,7 @@ ifndef CIRRUS
 CIRRUS = n
 endif
 ifndef NV_RIVA
-CIRRUS = n
+NV_RIVA = n
 endif
 ifndef FLUIDSYNTH
 FLUIDSYNTH = y