diff --git a/libavcodec/vc2enc.c b/libavcodec/vc2enc.c
index 4ef14a34c8..dc0270d99e 100644
--- a/libavcodec/vc2enc.c
+++ b/libavcodec/vc2enc.c
@@ -30,7 +30,7 @@
 #include "diractab.h"
 
 /* Quantizations above this usually zero coefficients and lower the quality */
-#define MAX_QUANT_INDEX 100
+#define MAX_QUANT_INDEX 50
 
 #define COEF_LUT_TAB 2048