diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 76659125..188cf17c 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -82,6 +82,7 @@ jobs:
         run: |
           ./build.sh
           ./build.sh release
+          cd ./tess/build/macosx && ./build_tess.sh clean
 
       - name: Tests
         if: matrix.platform == 'macOS'
diff --git a/tess/build/premake5_tess.lua b/tess/build/premake5_tess.lua
index dafc1e87..a374df42 100644
--- a/tess/build/premake5_tess.lua
+++ b/tess/build/premake5_tess.lua
@@ -11,7 +11,7 @@ project 'rive_tess_renderer'
 do
     kind 'StaticLib'
     language 'C++'
-    cppdialect 'C++17'
+    cppdialect 'C++11'
     toolset 'clang'
     targetdir '%{cfg.system}/bin/%{cfg.buildcfg}'
     objdir '%{cfg.system}/obj/%{cfg.buildcfg}'