diff --git a/src/template/osf b/src/template/osf
index 2d782ea1c3..8a65f114c5 100644
--- a/src/template/osf
+++ b/src/template/osf
@@ -4,3 +4,6 @@ else
   CC="$CC -std"
   CFLAGS='-O4 -Olimit 2000'
 fi
+SUPPORTS_THREADS=yes
+THREAD_CFLAGS="-pthread"
+