diff --git a/cime_config/buildlib b/cime_config/buildlib
index 07447be..6cb8214 100755
--- a/cime_config/buildlib
+++ b/cime_config/buildlib
@@ -11,6 +11,7 @@ from standard_script_setup import *
 from CIME.case import Case
 from CIME.utils import expect, run_cmd
 from CIME.buildlib import parse_input
+from CIME.build import get_standard_makefile_args
 
 logger = logging.getLogger(__name__)
 
@@ -31,7 +32,7 @@ def _build_rtm():
         if not os.path.isfile(filepath_file):
             srcroot = case.get_value("SRCROOT")
             caseroot = case.get_value("CASEROOT")
-            paths = [ os.path.join(caseroot,"SourceMods","src.rtm"), 
+            paths = [ os.path.join(caseroot,"SourceMods","src.rtm"),
                       os.path.join(srcroot,"components","rtm","src","riverroute"),
                       os.path.join(srcroot,"components","rtm","src","cpl")]
 
@@ -43,8 +44,8 @@ def _build_rtm():
         complib = os.path.join(libroot,"librof.a")
         makefile = os.path.join(casetools, "Makefile")
 
-        cmd = "%s complib -j %d MODEL=rtm COMPLIB=%s -f %s" \
-            % (gmake, gmake_j, complib, makefile)
+        cmd = "{} complib -j {} MODEL=rtm COMPLIB={} -f {} {}" \
+            .format(gmake, gmake_j, complib, makefile, get_standard_makefile_args(case))
 
         rc, out, err = run_cmd(cmd, from_dir=bldroot)
         expect(rc == 0, "Command %s failed rc=%d\nout=%s\nerr=%s" % (cmd, rc, out, err))
@@ -55,7 +56,3 @@ def _build_rtm():
 
 if __name__ == "__main__":
     _build_rtm()
-
-
-
-