diff --git a/.github/workflows/gempyor-ci.yml b/.github/workflows/gempyor-ci.yml
index d70d19071..451235d8d 100644
--- a/.github/workflows/gempyor-ci.yml
+++ b/.github/workflows/gempyor-ci.yml
@@ -43,6 +43,7 @@ jobs:
         shell: bash
       - name: Run gempyor tests
         run: |
+          export FLEPI_PATH=$(pwd)
           cd flepimop/gempyor_pkg
           pytest --exitfirst
         shell: bash
diff --git a/flepimop/gempyor_pkg/src/gempyor/_jinja.py b/flepimop/gempyor_pkg/src/gempyor/_jinja.py
index 406c8f2ef..9495996f1 100644
--- a/flepimop/gempyor_pkg/src/gempyor/_jinja.py
+++ b/flepimop/gempyor_pkg/src/gempyor/_jinja.py
@@ -14,11 +14,18 @@
 from tempfile import mkstemp
 from typing import Any
 
-from jinja2 import Environment, PackageLoader, Template
+from jinja2 import Environment, FileSystemLoader, PackageLoader, Template
 
 
 # Globals
-_jinja_environment = Environment(loader=PackageLoader("gempyor", "templates"))
+try:
+    _jinja_environment = Environment(loader=PackageLoader("gempyor", "templates"))
+except ValueError:
+    from os.path import dirname
+
+    _jinja_environment = Environment(
+        loader=FileSystemLoader(dirname(__file__) + "/templates")
+    )
 
 
 # Functions