diff --git a/metplus/wrappers/grid_diag_wrapper.py b/metplus/wrappers/grid_diag_wrapper.py
index 9f59d052bd..afe63f4480 100755
--- a/metplus/wrappers/grid_diag_wrapper.py
+++ b/metplus/wrappers/grid_diag_wrapper.py
@@ -68,7 +68,7 @@ def create_c_dict(self):
 
         c_dict['OUTPUT_DIR'] = self.config.getdir('GRID_DIAG_OUTPUT_DIR', '')
         c_dict['OUTPUT_TEMPLATE'] = (
-            self.config.getraw('filename_templates',
+            self.config.getraw('config',
                                'GRID_DIAG_OUTPUT_TEMPLATE')
         )