diff --git a/lib/spack/spack/cmd/create.py b/lib/spack/spack/cmd/create.py
index bc835668c23..2d3cfbb9caf 100644
--- a/lib/spack/spack/cmd/create.py
+++ b/lib/spack/spack/cmd/create.py
@@ -169,8 +169,8 @@ def __call__(self, stage):
 
             'R':         """\
         # FIXME: Add logic to build and install here.
-        R('CMD', 'INSTALL', '--library={0}'.format(self.module.r_lib_dir),""" +
-            " self.stage.source_path)""",
+        R('CMD', 'INSTALL', '--library={0}'.format(self.module.r_lib_dir),
+          self.stage.source_path)""",
 
             'unknown':   """\
         # FIXME: Unknown build system