diff --git a/installation/setup_shellrc.py b/installation/setup_shellrc.py
index da036851c..7137171fd 100755
--- a/installation/setup_shellrc.py
+++ b/installation/setup_shellrc.py
@@ -35,14 +35,19 @@ environment = { 'DAMASK_ROOT':
                               ], 
                 'LD_LIBRARY_PATH':
                               [{'activate': 'pathInfo["acml"]',
-                                'delete':'"acml"',                                                 # what keywords trigger item deletion from existing path 
+                                'delete':'"acml"',                                                # what keywords trigger item deletion from existing path 
                                 'substitute':'[os.path.join(pathInfo["acml"],"ifort64_mp/lib"),\
-                                               os.path.join(pathInfo["acml"],"ifort64/lib")]',     # what to substitute for deleted path items
-                                'append': True,                                                    # whether new entries append to existing ${env}
+                                               os.path.join(pathInfo["acml"],"ifort64/lib")]',    # what to substitute for deleted path items
+                                'append': True,                                                   # whether new entries append to existing ${env}
                                },
                                {'activate': 'pathInfo["lapack"]',
-                                'substitute':'[pathInfo["lapack"]]',     # what to substitute for deleted path items
-                                'append': True,                                                    # whether new entries append to existing ${env}
+                                'substitute':'[os.path.join(pathInfo["lapack"],"lib"),\
+                                               os.path.join(pathInfo["lapack"],"lib64")]',        # what to substitute for deleted path
+                                'append': True,                                                   # whether new entries append to existing ${env}
+                               },
+                               {'activate': 'pathInfo["fftw"]',
+                                'substitute':'[os.path.join(pathInfo["fftw"],"lib")]',            # what to substitute for deleted path items
+                                'append': True,                                                   # whether new entries append to existing ${env}
                                },
                               ],
                }