diff --git a/libavcodec/imgconvert.h b/libavcodec/imgconvert.h
index 3b5bed76af2f1319094197323641ca3f351745a7..ed9a6b73b13d3019f6445825b810c8f84a76524d 100644
--- a/libavcodec/imgconvert.h
+++ b/libavcodec/imgconvert.h
@@ -35,7 +35,4 @@ int ff_get_plane_bytewidth(enum PixelFormat pix_fmt, int width, int plane);
 
 int ff_set_systematic_pal(uint32_t pal[256], enum PixelFormat pix_fmt);
 
-int img_convert(AVPicture *dst, int dst_pix_fmt, const AVPicture *src,
-                int src_pix_fmt, int src_width, int src_height);
-
 #endif /* AVCODEC_IMGCONVERT_H */