diff --git a/pkgs/by-name/sh/showtime/package.nix b/pkgs/by-name/sh/showtime/package.nix
index 68945b8c27ab..64613e6b3ac0 100644
--- a/pkgs/by-name/sh/showtime/package.nix
+++ b/pkgs/by-name/sh/showtime/package.nix
@@ -52,6 +52,7 @@ python3Packages.buildPythonApplication rec {
     gst_all_1.gst-plugins-good
     gst_all_1.gst-plugins-rs
     gst_all_1.gst-plugins-ugly
+    gst_all_1.gst-libav
     gst_all_1.gstreamer
     libadwaita
   ];