diff --git a/docs/guide/codecs.md b/docs/guide/codecs.md
index cbb32753..6e3c073c 100644
--- a/docs/guide/codecs.md
+++ b/docs/guide/codecs.md
@@ -61,7 +61,7 @@ This command should return the version(s) of the runtime that you installed.
 To check what runtime version a certain program is currently running (i.e Firefox), enter in a terminal:
 
 ```bash
-flatpak info org.mozilla.firefox | grep Runtime
+flatpak info --show-extensions org.mozilla.firefox | grep runtime
 ```
 
 Ensure that you also get the ffmpeg-full version returned by the previous command.