diff --git a/TheengsExplorer/decoder.py b/TheengsExplorer/decoder.py
index ece3774..603677f 100644
--- a/TheengsExplorer/decoder.py
+++ b/TheengsExplorer/decoder.py
@@ -5,14 +5,11 @@
 
 
 def decode(advertisement_data):
+    """Decode advertisement data with Theengs Decoder."""
     data_json = {}
 
-    if advertisement_data.service_data:
-        dstr = list(advertisement_data.service_data.keys())[0]
-        # TheengsDecoder only accepts 16 bit UUIDs, this converts the 128 bit UUID to 16 bit.
-        data_json["servicedatauuid"] = dstr[4:8]
-        dstr = str(list(advertisement_data.service_data.values())[0].hex())
-        data_json["servicedata"] = dstr
+    if advertisement_data.local_name:
+        data_json["name"] = advertisement_data.local_name
 
     if advertisement_data.manufacturer_data:
         dstr = str(
@@ -23,13 +20,25 @@ def decode(advertisement_data):
         dstr += str(list(advertisement_data.manufacturer_data.values())[0].hex())
         data_json["manufacturerdata"] = dstr
 
-    if advertisement_data.local_name:
-        data_json["name"] = advertisement_data.local_name
+    if advertisement_data.service_data:
+        # Try to decode advertisement with service data for each UUID separately.
+        for uuid, data in advertisement_data.service_data.items():
+            # TheengsDecoder only accepts 16 bit UUIDs, this converts the 128 bit UUID to 16 bit.
+            data_json["servicedatauuid"] = uuid[4:8]
+            data_json["servicedata"] = data.hex()
+            try:
+                # Return the first one that decodes correctly.
+                return json.loads(decodeBLE(json.dumps(data_json)))
+            except TypeError:
+                pass  # Just try the following UUID if Theengs Decoder can't decode the data.
+
+        # No UUID resulted in successful decoding.
+        return {}
 
     if data_json:
         try:
             data_json = json.loads(decodeBLE(json.dumps(data_json)))
-        except TypeError:  # Theengs Decoder can't decode the data
+        except TypeError:  # Theengs Decoder can't decode the data.
             data_json = {}
 
     return data_json