diff --git a/deps/uvwasi/uvwasi.gyp b/deps/uvwasi/uvwasi.gyp
index c07b07b608b724..21ac35cdfc11ad 100644
--- a/deps/uvwasi/uvwasi.gyp
+++ b/deps/uvwasi/uvwasi.gyp
@@ -20,6 +20,14 @@
       'direct_dependent_settings': {
         'include_dirs': ['include']
       },
+      'conditions': [
+        [ 'OS=="linux"', {
+          'defines': [
+            '_GNU_SOURCE',
+            '_POSIX_C_SOURCE=200112',
+          ],
+        }],
+      ],
     }
   ]
 }