diff --git a/advertisement.py b/advertisement.py
index 86a31c5..5fc0f6a 100755
--- a/advertisement.py
+++ b/advertisement.py
@@ -22,7 +22,7 @@
 import dbus
 import dbus.service
 
-from bletools import BleTools
+from .bletools import BleTools
 
 BLUEZ_SERVICE_NAME = "org.bluez"
 LE_ADVERTISING_MANAGER_IFACE = "org.bluez.LEAdvertisingManager1"
diff --git a/service.py b/service.py
index 72ead6a..5d1aabf 100755
--- a/service.py
+++ b/service.py
@@ -26,7 +26,7 @@
   from gi.repository import GObject
 except ImportError:
     import gobject as GObject
-from bletools import BleTools
+from .bletools import BleTools
 
 BLUEZ_SERVICE_NAME = "org.bluez"
 GATT_MANAGER_IFACE = "org.bluez.GattManager1"