diff --git a/libclc/cmake/modules/AddLibclc.cmake b/libclc/cmake/modules/AddLibclc.cmake
index 2b8ff956d4a8..479a68865ad3 100644
--- a/libclc/cmake/modules/AddLibclc.cmake
+++ b/libclc/cmake/modules/AddLibclc.cmake
@@ -82,6 +82,9 @@ function(link_libclc_builtin_library target_name)
   if(NOT ARG_OUTPUT_FILENAME)
     message(FATAL_ERROR "OUTPUT_FILENAME is required for link_libclc_builtin_library")
   endif()
+  if(NOT ARG_LIBRARIES)
+    message(FATAL_ERROR "LIBRARIES is required for link_libclc_builtin_library")
+  endif()
 
   set(library_dir ${LIBCLC_OUTPUT_LIBRARY_DIR}/${ARG_TRIPLE})
   file(MAKE_DIRECTORY ${library_dir})
@@ -160,6 +163,9 @@ function(add_libclc_library target_name)
   if(NOT ARG_PARENT_TARGET)
     message(FATAL_ERROR "PARENT_TARGET is required for add_libclc_library")
   endif()
+  if(NOT ARG_SOURCES)
+    message(FATAL_ERROR "SOURCES is required for add_libclc_library")
+  endif()
 
   set(opencl_lib ${target_name}_opencl_builtins)
   add_libclc_builtin_library(${opencl_lib}