diff --git a/include/benchmark/benchmark.h b/include/benchmark/benchmark.h
index 293678c5..5c42581e 100644
--- a/include/benchmark/benchmark.h
+++ b/include/benchmark/benchmark.h
@@ -139,6 +139,7 @@ BENCHMARK(BM_MultiThreaded)->Threads(4);
 
 #include <functional>
 #include <memory>
+#include <pthread.h>
 #include <string>
 #include <vector>