diff --git a/pkgs/development/libraries/ffmpeg-full/default.nix b/pkgs/development/libraries/ffmpeg-full/default.nix
index 6246026e9ea7..4a02c034cf38 100644
--- a/pkgs/development/libraries/ffmpeg-full/default.nix
+++ b/pkgs/development/libraries/ffmpeg-full/default.nix
@@ -241,6 +241,11 @@ stdenv.mkDerivation rec {
   patchPhase = ''patchShebangs .
   '' + stdenv.lib.optionalString stdenv.isDarwin ''
     sed -i 's/#ifndef __MAC_10_11/#if 1/' ./libavcodec/audiotoolboxdec.c
+  '' + stdenv.lib.optionalString (frei0r != null) ''
+    substituteInPlace libavfilter/vf_frei0r.c \
+      --replace /usr/local/lib/frei0r-1 ${frei0r}/lib/frei0r-1
+    substituteInPlace doc/filters.texi \
+      --replace /usr/local/lib/frei0r-1 ${frei0r}/lib/frei0r-1
   '';
 
   configureFlags = [