diff --git a/ci/test/00_setup_env_win64.sh b/ci/test/00_setup_env_win64.sh
index 4342e3e6ac1..dbbf55c1478 100755
--- a/ci/test/00_setup_env_win64.sh
+++ b/ci/test/00_setup_env_win64.sh
@@ -9,7 +9,6 @@ export LC_ALL=C.UTF-8
 export CONTAINER_NAME=ci_win64
 export CI_IMAGE_NAME_TAG="mirror.gcr.io/debian:trixie"  # Check that https://packages.debian.org/trixie/g++-mingw-w64-ucrt64 can cross-compile
 export HOST=x86_64-w64-mingw32ucrt
-export DEP_OPTS="CC=${HOST}-gcc CXX=${HOST}-g++"
 export PACKAGES="g++-mingw-w64-ucrt64 nsis"
 export RUN_UNIT_TESTS=false
 export RUN_FUNCTIONAL_TESTS=false