diff --git a/fermipy/gtanalysis.py b/fermipy/gtanalysis.py
index 2b9d28de..b55f5705 100644
--- a/fermipy/gtanalysis.py
+++ b/fermipy/gtanalysis.py
@@ -9,6 +9,8 @@
 import filecmp
 import time
 import json
+from pathlib import Path
+
 import numpy as np
 from astropy.io import fits
 from astropy.table import Table, Column, vstack
@@ -291,6 +293,9 @@ def __init__(self, config, roi=None, **kwargs):
         validate = kwargs.pop('validate', True)
         self._loglevel = kwargs.pop('loglevel', logging.INFO)
 
+        if isinstance(config, Path) or isinstance(config, str):
+            config = str(Path(config).resolve())
+
         super(GTAnalysis, self).__init__(config, validate=validate,
                                          **kwargs)