diff --git a/.github/workflows/bgfxshaders.yml b/.github/workflows/bgfxshaders.yml
index 26b2418f696..6c4e984b893 100644
--- a/.github/workflows/bgfxshaders.yml
+++ b/.github/workflows/bgfxshaders.yml
@@ -34,6 +34,7 @@ jobs:
     - name: Build
       env:
         MINGW64: "/mingw64"
+        CXXFLAGS: "-std=c++17"
       run: make shaders
     - uses: actions/upload-artifact@master
       with: