diff --git a/src/google/protobuf/stubs/mutex.h b/src/google/protobuf/stubs/mutex.h
index 2cce0561..7ef1cb69 100644
--- a/src/google/protobuf/stubs/mutex.h
+++ b/src/google/protobuf/stubs/mutex.h
@@ -30,6 +30,10 @@
 #ifndef GOOGLE_PROTOBUF_STUBS_MUTEX_H_
 #define GOOGLE_PROTOBUF_STUBS_MUTEX_H_
 
+#ifdef GOOGLE_PROTOBUF_NO_THREADLOCAL
+#include <pthread.h>
+#endif
+
 #include <google/protobuf/stubs/macros.h>
 
 // ===================================================================
diff --git a/src/google/protobuf/stubs/platform_macros.h b/src/google/protobuf/stubs/platform_macros.h
index fcafcc14..9e0344d8 100644
--- a/src/google/protobuf/stubs/platform_macros.h
+++ b/src/google/protobuf/stubs/platform_macros.h
@@ -115,8 +115,6 @@ GOOGLE_PROTOBUF_PLATFORM_ERROR
 // TLS support on android.
 // iOS also does not support the __thread keyword.
 #define GOOGLE_PROTOBUF_NO_THREADLOCAL
-
-#include <pthread.h>
 #endif
 
 #endif  // GOOGLE_PROTOBUF_PLATFORM_MACROS_H_