diff --git a/fieldpoc/config.py b/fieldpoc/config.py
index 9eae96b..b2107eb 100644
--- a/fieldpoc/config.py
+++ b/fieldpoc/config.py
@@ -26,16 +26,19 @@ class DectConfig(ConfigBase):
     def check(self):
         return True
 
+class ExtensionsConfig(ConfigBase):
+    pass
+
 class YateConfig(ConfigBase):
     pass
 
 
 class Config:
     def __init__(self, c):
-        self._c = c
         self.controller = ControllerConfig(c.get("controller", {}))
         self.database = DatabaseConfig(c.get("database", {}))
         self.dect = DectConfig(c.get("dect", {}))
+        self.extensions = ExtensionsConfig(c.get("extensions", {}))
         self.yate = YateConfig(c.get("yate", {}))
 
     def check(self):
diff --git a/fieldpoc/fieldpoc.py b/fieldpoc/fieldpoc.py
index 434a854..02e3381 100644
--- a/fieldpoc/fieldpoc.py
+++ b/fieldpoc/fieldpoc.py
@@ -20,11 +20,10 @@ class FieldPOC:
     extensions = None
     temp_extensions = {}
 
-    def __init__(self, config_file_path, extensions_file_path):
+    def __init__(self, config_file_path):
         logger.info("loading configuration")
         self.config_file_path = pathlib.Path(config_file_path)
         self._load_config()
-        self.extensions_file_path = pathlib.Path(extensions_file_path)
         self._load_extensions()
 
         logger.info("initialising queues")
@@ -92,4 +91,4 @@ class FieldPOC:
         self.config = config.Config(json.loads(self.config_file_path.read_text()))
 
     def _load_extensions(self):
-        self.extensions = extensions.Extensions(json.loads(self.extensions_file_path.read_text()))
+        self.extensions = extensions.Extensions(json.loads(pathlib.Path(self.config.extensions.file).read_text()))
diff --git a/fieldpoc/run.py b/fieldpoc/run.py
index 811f2cc..15b85ca 100644
--- a/fieldpoc/run.py
+++ b/fieldpoc/run.py
@@ -12,7 +12,6 @@ logger = logging.getLogger("fieldpoc.run")
 
 ap = argparse.ArgumentParser(prog="fieldpoc")
 ap.add_argument("-c", "--config", dest="config_file_path", default="fieldpoc_config.json", help="Path to the fieldpoc config file")
-ap.add_argument("-e", "--extensions", dest="extensions_file_path", default="fieldpoc_extensions.json", help="Path to the fieldpoc extensions file")
 ap.add_argument('--init', dest="init", action='store_true')
 ap.add_argument('--debug', dest="debug", action='store_true')
 
@@ -33,7 +32,7 @@ def run():
 
     logger.info("prepared signal handling")
 
-    fp = fieldpoc.FieldPOC(config_file_path=args.config_file_path, extensions_file_path=args.extensions_file_path)
+    fp = fieldpoc.FieldPOC(config_file_path=args.config_file_path)
 
     if args.init:
         fp.init()
diff --git a/fieldpoc_config.json b/fieldpoc_config.json
index 709eaa3..1ee0f2e 100644
--- a/fieldpoc_config.json
+++ b/fieldpoc_config.json
@@ -1,4 +1,7 @@
 {
+  "extensions": {
+    "file": "fieldpoc_extensions.json"
+  },
   "controller": {
     "host": "127.0.0.1",
     "port": 9437