diff --git a/v2/tools/pathscale.jam b/v2/tools/pathscale.jam
index ff42eb75f..b4c0578cd 100644
--- a/v2/tools/pathscale.jam
+++ b/v2/tools/pathscale.jam
@@ -112,6 +112,7 @@ flags pathscale.link LINKPATH <library-path> ;
 flags pathscale.link FINDLIBS-ST <find-static-library> ;
 flags pathscale.link FINDLIBS-SA <find-shared-library> ;
 flags pathscale.link FINDLIBS-SA <threading>multi : pthread ;
+flags pathscale.link FINDLIBS-SA <threading>multi : rt ;
 flags pathscale.link LIBRARIES <library-file> ;
 flags pathscale.link LINK-RUNTIME <runtime-link>static : static ;
 flags pathscale.link LINK-RUNTIME <runtime-link>shared : dynamic ;