diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c
index 6301080832..042ad1b062 100644
--- a/libavcodec/pngdec.c
+++ b/libavcodec/pngdec.c
@@ -859,7 +859,7 @@ static int decode_trns_chunk(AVCodecContext *avctx, PNGDecContext *s,
     return 0;
 }
 
-static int decode_iccp_chunk(PNGDecContext *s, int length, AVFrame *f)
+static int decode_iccp_chunk(PNGDecContext *s, int length)
 {
     int ret, cnt = 0;
     AVBPrint bp;
@@ -1322,7 +1322,7 @@ static int decode_frame_common(AVCodecContext *avctx, PNGDecContext *s,
             break;
         }
         case MKTAG('i', 'C', 'C', 'P'): {
-            if ((ret = decode_iccp_chunk(s, length, p)) < 0)
+            if ((ret = decode_iccp_chunk(s, length)) < 0)
                 goto fail;
             break;
         }