diff --git a/app.py b/app.py
index e699b30..13d57c1 100644
--- a/app.py
+++ b/app.py
@@ -6,17 +6,9 @@ def createApp(envivorment=None, start_response=None):
 
     # check files & environment
     signal = os.environ.get("SIGNAL_CLI_BIN")
+
     if not os.environ.get("SIGNAL_API_PASS"):
         print("SIGNAL_API_PASS must be set in enviromenment", file=sys.stderr)
         sys.exit(1)
-    elif not os.path.isfile(interface.SIGNAL_USER_FILE):
-        print("{} does not exist.".format(interface.SIGNAL_USER_FILE), file=sys.stderr)
-        sys.exit(1)
-    elif not os.path.getsize(interface.SIGNAL_USER_FILE) > 0:
-        print("{} is empty.".format(interface.SIGNAL_USER_FILE), file=sys.stderr)
-        sys.exit(1)
-    elif not signal or not os.path.isfile(signal):
-        print("SIGNAL_CLI_BIN not set or does not exist.", file=sys.stderr)
-        sys.exit(1)
 
     return interface.app
diff --git a/interface.py b/interface.py
index 3b854f5..f07c3f2 100755
--- a/interface.py
+++ b/interface.py
@@ -22,7 +22,6 @@ from sqlalchemy.sql.expression import func
 
 
 HOST = "icinga.atlantishq.de"
-SIGNAL_USER_FILE = "signal_targets.txt"
 app = flask.Flask("Signal Notification Gateway")
 app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///sqlite.db"
 db = SQLAlchemy(app)