1 files changed, 6 insertions, 1 deletions
diff --git a/test/unit/preprocess.lua b/test/unit/preprocess.lua
index e5c838b13b..10ba997758 100644
--- a/test/unit/preprocess.lua
+++ b/test/unit/preprocess.lua
@@ -105,7 +105,12 @@ local Gcc = {
    '-DINCLUDE_GENERATED_DECLARATIONS',
 
    -- Needed for FreeBSD
-   '-D "_Thread_local="'
+   '-D "_Thread_local="',
+
+   -- Needed for macOS Sierra
+   '-D "_Nullable="',
+   '-D "_Nonnull="',
+   '-U__BLOCKS__',
   }
 }