diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4a405ea..088ba4a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 CMAKE_MINIMUM_REQUIRED(VERSION 3.16 FATAL_ERROR)
 
 # ---[ Project
-PROJECT(FP16 C CXX)
+PROJECT(FP16 C)
 
 # ---[ Options.
 OPTION(FP16_BUILD_TESTS "Build FP16 unit tests" ON)
@@ -9,6 +9,10 @@ OPTION(FP16_BUILD_BENCHMARKS "Build FP16 micro-benchmarks" ON)
 OPTION(FP16_BUILD_COMPARATIVE_BENCHMARKS "Build FP16 micro-benchmarks comparing to alternatives" OFF)
 
 # ---[ CMake options
+IF(FP16_BUILD_TESTS OR FP16_BUILD_BENCHMARKS)
+  ENABLE_LANGUAGE(CXX)
+ENDIF()
+
 IF(FP16_BUILD_TESTS)
   ENABLE_TESTING()
 ENDIF()