--- a/compile.sh
+++ b/compile.sh
@@ -99,7 +99,7 @@
   new_step 'Building Bazel with Bazel'
   display "."
   log "Building output/bazel"
-  bazel_build "src:bazel${EXE_EXT}"
+  CC=$SPACK_CC CXX=$SPACK_CXX bazel_build "src:bazel${EXE_EXT}"
   cp -f "bazel-bin/src/bazel${EXE_EXT}" "output/bazel${EXE_EXT}"
   chmod 0755 "output/bazel${EXE_EXT}"
   BAZEL="$(pwd)/output/bazel${EXE_EXT}"