diff --git a/vp8/decoder/decodframe.c b/vp8/decoder/decodframe.c
index 39ad8ab007a5ec41007c338f31a8121fca070c46..9240529e5fa785252419f6934f1f7692246bf741 100644
--- a/vp8/decoder/decodframe.c
+++ b/vp8/decoder/decodframe.c
@@ -95,7 +95,7 @@ void vp8cx_init_de_quantizer(VP8D_COMP *pbi) {
   }
 }
 
-void mb_init_dequantizer(VP8D_COMP *pbi, MACROBLOCKD *xd) {
+static void mb_init_dequantizer(VP8D_COMP *pbi, MACROBLOCKD *xd) {
   int i;
   int QIndex;
   VP8_COMMON *const pc = &pbi->common;