diff --git a/homeassistant/components/system_log/__init__.py b/homeassistant/components/system_log/__init__.py
index 44ff9c49a01..0c4270eaeef 100644
--- a/homeassistant/components/system_log/__init__.py
+++ b/homeassistant/components/system_log/__init__.py
@@ -99,6 +99,7 @@ class LogEntry:
     def __init__(self, record, stack, source):
         """Initialize a log entry."""
         self.first_occured = self.timestamp = record.created
+        self.name = record.name
         self.level = record.levelname
         self.message = record.getMessage()
         self.exception = ""
@@ -114,7 +115,7 @@ class LogEntry:
 
     def hash(self):
         """Calculate a key for DedupStore."""
-        return frozenset([self.message, self.root_cause])
+        return frozenset([self.name, self.message, self.root_cause])
 
     def to_dict(self):
         """Convert object into dict to maintain backward compatibility."""
diff --git a/tests/components/system_log/test_init.py b/tests/components/system_log/test_init.py
index 0b1c4f91781..0ad87b59a81 100644
--- a/tests/components/system_log/test_init.py
+++ b/tests/components/system_log/test_init.py
@@ -30,6 +30,7 @@ def _generate_and_log_exception(exception, log):
 
 def assert_log(log, exception, message, level):
     """Assert that specified values are in a specific log entry."""
+    assert log["name"] == "test_logger"
     assert exception in log["exception"]
     assert message == log["message"]
     assert level == log["level"]