diff --git a/include/nuttx/compiler.h b/include/nuttx/compiler.h
index e95f76af21..28e41adf4e 100644
--- a/include/nuttx/compiler.h
+++ b/include/nuttx/compiler.h
@@ -293,11 +293,7 @@
 #    define CONFIG_HAVE_ANONYMOUS_UNION 1
 #  endif
 
-/* GCC supports both types double and long long */
-
-#  ifndef __clang__
-#    define CONFIG_HAVE_LONG_LONG 1
-#  endif
+#  define CONFIG_HAVE_LONG_LONG 1
 #  define CONFIG_HAVE_FLOAT 1
 #  define CONFIG_HAVE_DOUBLE 1
 #  define CONFIG_HAVE_LONG_DOUBLE 1