diff --git a/Tools/ardupilotwaf/gbenchmark.py b/Tools/ardupilotwaf/gbenchmark.py
index e13f47ff75..5483ee5fad 100644
--- a/Tools/ardupilotwaf/gbenchmark.py
+++ b/Tools/ardupilotwaf/gbenchmark.py
@@ -91,7 +91,7 @@ def configure(cfg):
 
     env.INCLUDES_GBENCHMARK = [prefix_node.make_node('include').abspath()]
     env.LIBPATH_GBENCHMARK = [prefix_node.make_node('lib').abspath()]
-    env.LIB_GBENCHMARK = ['benchmark']
+    env.LIB_GBENCHMARK = ['benchmark','pthread']
 
     env.HAS_GBENCHMARK = True