diff --git a/libavcodec/ivi_common.c b/libavcodec/ivi_common.c
index 37888d3d8c963583bf3b1bce40b2041a5933420e..cbcd97098042a3a26ca583c656bd726cf676e60a 100644
--- a/libavcodec/ivi_common.c
+++ b/libavcodec/ivi_common.c
@@ -584,7 +584,7 @@ void ff_ivi_process_empty_tile(AVCodecContext *avctx, IVIBandDesc *band,
 
 
 #ifdef DEBUG
-uint16_t ivi_calc_band_checksum (IVIBandDesc *band)
+static uint16_t ivi_calc_band_checksum(IVIBandDesc *band)
 {
     int         x, y;
     int16_t     *src, checksum;
diff --git a/libavcodec/ivi_common.h b/libavcodec/ivi_common.h
index 24e52cca53d87255797267394d7e69d8166363fe..1ba431b4ed87f68ffc24dde25b6224164e8805dd 100644
--- a/libavcodec/ivi_common.h
+++ b/libavcodec/ivi_common.h
@@ -396,11 +396,6 @@ void ff_ivi_process_empty_tile(AVCodecContext *avctx, IVIBandDesc *band,
  */
 void ff_ivi_output_plane(IVIPlaneDesc *plane, uint8_t *dst, int dst_pitch);
 
-/**
- *  Calculate band checksum from band data.
- */
-uint16_t ivi_calc_band_checksum (IVIBandDesc *band);
-
 int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
                         AVPacket *avpkt);
 av_cold int ff_ivi_decode_close(AVCodecContext *avctx);