diff --git a/libavcodec/cabac.c b/libavcodec/cabac.c
index 02d2911e85..6ba9303dc1 100644
--- a/libavcodec/cabac.c
+++ b/libavcodec/cabac.c
@@ -136,7 +136,8 @@ void ff_init_cabac_decoder(CABACContext *c, const uint8_t *buf, int buf_size){
     c->range= 0x1FE;
 }
 
-void ff_init_cabac_states(CABACContext *c){
+void ff_init_cabac_states(void)
+{
     int i, j;
 
     for(i=0; i<64; i++){
diff --git a/libavcodec/cabac.h b/libavcodec/cabac.h
index 1f1c943262..04495a6fe6 100644
--- a/libavcodec/cabac.h
+++ b/libavcodec/cabac.h
@@ -51,6 +51,6 @@ typedef struct CABACContext{
 
 void ff_init_cabac_encoder(CABACContext *c, uint8_t *buf, int buf_size);
 void ff_init_cabac_decoder(CABACContext *c, const uint8_t *buf, int buf_size);
-void ff_init_cabac_states(CABACContext *c);
+void ff_init_cabac_states(void);
 
 #endif /* AVCODEC_CABAC_H */
diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 472fa475aa..5308fc3e7d 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -4111,7 +4111,7 @@ static int decode_slice(struct AVCodecContext *avctx, void *arg)
         align_get_bits(&h->gb);
 
         /* init cabac */
-        ff_init_cabac_states(&h->cabac);
+        ff_init_cabac_states();
         ff_init_cabac_decoder(&h->cabac,
                               h->gb.buffer + get_bits_count(&h->gb) / 8,
                               (get_bits_left(&h->gb) + 7) / 8);