diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index eb214c1..da6c5e3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -66,7 +66,6 @@ jobs:
         CXX: ${{ matrix.cxx }}
         LIBRARY_PATH: /usr/local/opt/llvm/lib
       run: |
-        source $HOME/install/share/triqs/triqsvars.sh
         mkdir build && cmake -B build
         cmake --build build -j2