diff --git a/net.retrodeck.retrodeck.yml b/net.retrodeck.retrodeck.yml
index 87aec780..142f4e4e 100644
--- a/net.retrodeck.retrodeck.yml
+++ b/net.retrodeck.retrodeck.yml
@@ -2,6 +2,8 @@ app-id: net.retrodeck.retrodeck
 runtime: org.kde.Platform
 runtime-version: "6.7"
 sdk: org.kde.Sdk
+sdk-extensions:
+  - org.freedesktop.Sdk.Extension.llvm18  # Needed for RPCS3, Duckstation, PCSX2
 command: retrodeck.sh
 
 finish-args: