diff --git a/src/tools/linker.sh b/src/tools/linker.sh
index 203eef8efb14c8e3578579617e601795fabe2bbf..0006b4afca1e529fa05ae4d56d13fb8b140ce457 100755
--- a/src/tools/linker.sh
+++ b/src/tools/linker.sh
@@ -125,7 +125,7 @@ case $uname_s in
       OPT_EXTRA="-Bdynamic"
 
       # See Config.sparc_sunc
-      OS_LIBS="-lsocket -lnsl -ldl"
+      OS_LIBS="-lsocket -lnsl -ldl -lrt"
       ;;
 
 esac