diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 35af9a15..6a50cd17 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -254,7 +254,7 @@ if(Omega_h_USE_DOLFIN)
 endif()
 
 if(Kokkos_ENABLE_CUDA)
-  target_compile_options(omega_h PUBLIC "--expt-extended-lambda")
+  target_compile_options(omega_h PUBLIC "$<$<COMPILE_LANGUAGE:CXX>:--expt-extended-lambda>")
 endif()
 
 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")