diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index f1028ba..aba5bf5 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -8,6 +8,8 @@ if(NOT HAVE_BOOST_TEST)
   return()
 endif()
 
+enable_language(C)
+
 set(tests_common arithmetic array comparison control debug facilities list logical punctuation selection seq slot stringize tuple variadic isempty)
 set(tests_c ${tests_common})
 set(tests_cpp ${tests_common} iteration repetition quick)
diff --git a/test/quick.cpp b/test/quick.cpp
index 1eaac11..73372a3 100644
--- a/test/quick.cpp
+++ b/test/quick.cpp
@@ -37,3 +37,7 @@ BEGIN BOOST_PP_GREATER(1, 2) == 0 END
 BEGIN BOOST_PP_GREATER_EQUAL(2, 1) == 1 END
 BEGIN BOOST_PP_GREATER_EQUAL(1, 2) == 0 END
 BEGIN BOOST_PP_GREATER_EQUAL(2, 2) == 1 END
+
+int main()
+{
+}