diff --git a/libavcodec/mjpegenc.c b/libavcodec/mjpegenc.c
index a4899c5d6e..9a97027990 100644
--- a/libavcodec/mjpegenc.c
+++ b/libavcodec/mjpegenc.c
@@ -80,8 +80,8 @@ av_cold int ff_mjpeg_encode_init(MpegEncContext *s)
                                  avpriv_mjpeg_bits_ac_chrominance,
                                  avpriv_mjpeg_val_ac_chrominance);
 
-    init_uni_ac_vlc(m->huff_size_ac_luminance,   m->uni_ac_vlc_len);
-    init_uni_ac_vlc(m->huff_size_ac_chrominance, m->uni_chroma_ac_vlc_len);
+    ff_init_uni_ac_vlc(m->huff_size_ac_luminance,   m->uni_ac_vlc_len);
+    ff_init_uni_ac_vlc(m->huff_size_ac_chrominance, m->uni_chroma_ac_vlc_len);
     s->intra_ac_vlc_length      =
     s->intra_ac_vlc_last_length = m->uni_ac_vlc_len;
     s->intra_chroma_ac_vlc_length      =
diff --git a/libavcodec/mjpegenc_common.c b/libavcodec/mjpegenc_common.c
index 8ec3df9090..2a53cbf13f 100644
--- a/libavcodec/mjpegenc_common.c
+++ b/libavcodec/mjpegenc_common.c
@@ -36,7 +36,7 @@
 #include "mjpegenc_huffman.h"
 #include "mjpeg.h"
 
-av_cold void init_uni_ac_vlc(const uint8_t huff_size_ac[256], uint8_t *uni_ac_vlc_len)
+av_cold void ff_init_uni_ac_vlc(const uint8_t huff_size_ac[256], uint8_t *uni_ac_vlc_len)
 {
     int i;
 
@@ -505,8 +505,8 @@ int ff_mjpeg_encode_stuffing(MpegEncContext *s)
 
         // Replace the VLCs with the optimal ones.
         // The default ones may be used for trellis during quantization.
-        init_uni_ac_vlc(m->huff_size_ac_luminance,   m->uni_ac_vlc_len);
-        init_uni_ac_vlc(m->huff_size_ac_chrominance, m->uni_chroma_ac_vlc_len);
+        ff_init_uni_ac_vlc(m->huff_size_ac_luminance,   m->uni_ac_vlc_len);
+        ff_init_uni_ac_vlc(m->huff_size_ac_chrominance, m->uni_chroma_ac_vlc_len);
         s->intra_ac_vlc_length      =
         s->intra_ac_vlc_last_length = m->uni_ac_vlc_len;
         s->intra_chroma_ac_vlc_length      =
diff --git a/libavcodec/mjpegenc_common.h b/libavcodec/mjpegenc_common.h
index 7d760f8a32..d9a565dfa9 100644
--- a/libavcodec/mjpegenc_common.h
+++ b/libavcodec/mjpegenc_common.h
@@ -40,6 +40,6 @@ void ff_mjpeg_init_hvsample(AVCodecContext *avctx, int hsample[4], int vsample[4
 void ff_mjpeg_encode_dc(PutBitContext *pb, int val,
                         uint8_t *huff_size, uint16_t *huff_code);
 
-av_cold void init_uni_ac_vlc(const uint8_t huff_size_ac[256], uint8_t *uni_ac_vlc_len);
+av_cold void ff_init_uni_ac_vlc(const uint8_t huff_size_ac[256], uint8_t *uni_ac_vlc_len);
 
 #endif /* AVCODEC_MJPEGENC_COMMON_H */