diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 3eb1386a24..99dd52b0c9 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -8083,7 +8083,7 @@ int main(void){
 #endif /* TEST */
 
 
-av_cold ff_h264_free_context(H264Context *h)
+av_cold void ff_h264_free_context(H264Context *h)
 {
     int i;
 
diff --git a/libavcodec/h264.h b/libavcodec/h264.h
index 1f151af2cb..b58d86a67d 100644
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@ -572,6 +572,6 @@ int ff_h264_decode_rbsp_trailing(H264Context *h, const uint8_t *src);
 /**
  * frees any data that may have been allocated in the H264 context like SPS, PPS etc.
  */
-av_cold ff_h264_free_context(H264Context *h);
+av_cold void ff_h264_free_context(H264Context *h);
 
 #endif /* AVCODEC_H264_H */