diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b2792efc0dae9e71a94601182259a5f7cd8056a8..274a1df4384ac5efe1a3413269a373821c198ad7 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -151,7 +151,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - name: Configure CPython
-      run: ./configure --with-pydebug --with-openssl=/usr/local/opt/openssl --prefix=/opt/python-dev
+      run: ./configure --with-pydebug --with-openssl=/usr/local/opt/openssl --prefix=/opt/python-dev --with-tcltk-includes=-I$(brew --prefix tcl-tk)/include --with-tcltk-libs="-L$(brew --prefix tcl-tk)/lib -ltcl8.6 -ltk8.6"
     - name: Build CPython
       run: make -j4
     - name: Display build info