diff --git a/pkgs/by-name/yt/yt-dlp/package.nix b/pkgs/by-name/yt/yt-dlp/package.nix
index b8c13eaf480d..6b66743d7c9d 100644
--- a/pkgs/by-name/yt/yt-dlp/package.nix
+++ b/pkgs/by-name/yt/yt-dlp/package.nix
@@ -100,7 +100,10 @@ python3Packages.buildPythonApplication rec {
         ++ lib.optional rtmpSupport rtmpdump;
     in
     lib.optionals (packagesToBinPath != [ ]) [
-      ''--prefix PATH : "${lib.makeBinPath packagesToBinPath}"''
+      "--prefix"
+      "PATH"
+      ":"
+      ''"${lib.makeBinPath packagesToBinPath}"''
     ];
 
   checkPhase = ''