diff --git a/pkgs/by-name/aa/aaxtomp3/package.nix b/pkgs/by-name/aa/aaxtomp3/package.nix
index 8bbd43a58384..4ada59786c08 100644
--- a/pkgs/by-name/aa/aaxtomp3/package.nix
+++ b/pkgs/by-name/aa/aaxtomp3/package.nix
@@ -30,10 +30,10 @@ resholve.mkDerivation rec {
 
   postPatch = ''
     substituteInPlace AAXtoMP3 \
-      --replace 'AAXtoMP3' 'aaxtomp3'
+      --replace-fail 'AAXtoMP3' 'aaxtomp3'
     substituteInPlace interactiveAAXtoMP3 \
-      --replace 'AAXtoMP3' 'aaxtomp3' \
-      --replace 'call="./aaxtomp3"' 'call="$AAXTOMP3"'
+      --replace-fail 'AAXtoMP3' 'aaxtomp3' \
+      --replace-fail 'call="./aaxtomp3"' 'call="$AAXTOMP3"'
   '';
 
   installPhase = ''