diff --git a/.github/workflows/cooker.yml b/.github/workflows/cooker.yml
index fa46bc4e..6615daf1 100644
--- a/.github/workflows/cooker.yml
+++ b/.github/workflows/cooker.yml
@@ -35,7 +35,7 @@ jobs:
           sudo apt-get update
           sudo apt install flatpak flatpak-builder p7zip-full
           sudo flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
-          sudo flatpak install -y org.kde.Sdk//5.15-21.08 org.kde.Platform//5.15-21.08 io.qt.qtwebengine.BaseApp/x86_64/5.15-21.08
+          sudo flatpak install -y org.kde.Sdk//5.15-21.08 org.kde.Platform//5.15-21.08 io.qt.qtwebengine.BaseApp/x86_64/5.15-21.08 org.freedesktop.Sdk.Extension.llvm13
       
       # Runs a set of commands using the runners shell
       - name: Building flatpak
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 2e6a4e36..3d48a51a 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -35,7 +35,7 @@ jobs:
           sudo apt-get update
           sudo apt install flatpak flatpak-builder p7zip-full
           sudo flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
-          sudo flatpak install -y org.kde.Sdk//5.15-21.08 org.kde.Platform//5.15-21.08 io.qt.qtwebengine.BaseApp/x86_64/5.15-21.08
+          sudo flatpak install -y org.kde.Sdk//5.15-21.08 org.kde.Platform//5.15-21.08 io.qt.qtwebengine.BaseApp/x86_64/5.15-21.08 org.freedesktop.Sdk.Extension.llvm13
       
       # Runs a set of commands using the runners shell
       - name: Building flatpak
diff --git a/com.xargon.retrodeck.yml b/com.xargon.retrodeck.yml
index 2b7cd9c0..5e5d3cd9 100644
--- a/com.xargon.retrodeck.yml
+++ b/com.xargon.retrodeck.yml
@@ -2,6 +2,10 @@ app-id: com.xargon.retrodeck
 runtime: org.kde.Platform
 runtime-version: '5.15-21.08'
 sdk: org.kde.Sdk
+# Needed for rpcs3
+sdk-extensions:
+- org.freedesktop.Sdk.Extension.llvm13
+# /Needed for rpcs3
 # Needed for Yuzu
 base: io.qt.qtwebengine.BaseApp
 base-version: 5.15-21.08