diff --git a/docs/source/conf.py b/docs/source/conf.py
index e381c25b..40955163 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -18,7 +18,7 @@ import os, re, shlex, sys
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
-sys.path.insert(0, os.path.abspath('../..'))
+sys.path.insert(0, os.path.abspath('../../gprMax'))
 
 # -- General configuration ------------------------------------------------
 
diff --git a/gprMax/fields_output.py b/gprMax/fields_output.py
index e2b50c27..3dc2d739 100644
--- a/gprMax/fields_output.py
+++ b/gprMax/fields_output.py
@@ -19,7 +19,7 @@ import numpy as np
 
 import h5py
 
-from gprMax.constants import floattype
+from .constants import floattype
 
 
 def prepare_output_file(outputfile, G):