diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7bf12eff..aec0ad30 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -170,7 +170,7 @@ jobs:
         run: CXX=clang++-18 ./config/clang.sh ./config/test_has_module_support.cpp ./config/has_module_support.cpp has_module_support
         working-directory: ../boost-root/libs/regex/test/module
       - name: Test
-        run: CXX=clang++-18 ./test.sh ./config/clang.sh
+        run: CXX=clang++-18 LIBRARIES="-licuuc -licudt -licuin" ./test.sh ./config/clang.sh
         working-directory: ../boost-root/libs/regex/test/module
   macos:
     runs-on: macos-latest
diff --git a/test/module/config/clang.sh b/test/module/config/clang.sh
index d7e43dcc..edf8e1b7 100755
--- a/test/module/config/clang.sh
+++ b/test/module/config/clang.sh
@@ -33,4 +33,4 @@ module_usage="$module_usage -fmodule-file=$cxx_module_name=$module_base.pcm $mod
 done
 
 # Build the actual executable:
-$CXX $CXXFLAGS $1 $module_usage -o $3 || exit 1
+$CXX $CXXFLAGS $1 $module_usage $LIBRARIES -o $3 || exit 1