diff --git a/app/performance_platform/processing_time.py b/app/performance_platform/processing_time.py
index e9811a939..320c0d454 100644
--- a/app/performance_platform/processing_time.py
+++ b/app/performance_platform/processing_time.py
@@ -3,7 +3,7 @@ from datetime import datetime
 from flask import current_app
 
 from app.utils import get_midnight_for_day_before, get_london_midnight_in_utc
-from app.dao.notifications_dao import dao_get_total_notifications_sent_per_day_for_perfomance_platform
+from app.dao.notifications_dao import dao_get_total_notifications_sent_per_day_for_performance_platform
 from app import performance_platform_client
 
 
@@ -12,7 +12,7 @@ def send_processing_time_to_performance_platform():
     start_date = get_midnight_for_day_before(today)
     end_date = get_london_midnight_in_utc(today)
 
-    result = dao_get_total_notifications_sent_per_day_for_perfomance_platform(start_date, end_date)
+    result = dao_get_total_notifications_sent_per_day_for_performance_platform(start_date, end_date)
 
     current_app.logger.info(
         'Sending processing-time to performance platform for date {}. Total: {}, under 10 secs {}'.format(
diff --git a/tests/app/dao/notification_dao/test_notification_dao_performance_platform.py b/tests/app/dao/notification_dao/test_notification_dao_performance_platform.py
index 6d3e6839a..38d7096fe 100644
--- a/tests/app/dao/notification_dao/test_notification_dao_performance_platform.py
+++ b/tests/app/dao/notification_dao/test_notification_dao_performance_platform.py
@@ -2,7 +2,7 @@ from datetime import date, datetime, timedelta
 
 from freezegun import freeze_time
 
-from app.dao.notifications_dao import dao_get_total_notifications_sent_per_day_for_perfomance_platform
+from app.dao.notifications_dao import dao_get_total_notifications_sent_per_day_for_performance_platform
 from app.models import KEY_TYPE_NORMAL, KEY_TYPE_TEAM, KEY_TYPE_TEST
 
 from tests.app.db import create_notification
@@ -12,7 +12,7 @@ def test_get_total_notifications_filters_on_date(sample_template):
     create_notification(sample_template, created_at=datetime(2016, 10, 17, 10, 0))
     create_notification(sample_template, created_at=datetime(2016, 10, 18, 10, 0))
     create_notification(sample_template, created_at=datetime(2016, 10, 19, 10, 0))
-    result = dao_get_total_notifications_sent_per_day_for_perfomance_platform(date(2016, 10, 18), date(2016, 10, 19))
+    result = dao_get_total_notifications_sent_per_day_for_performance_platform(date(2016, 10, 18), date(2016, 10, 19))
     assert result.messages_total == 1
 
 
@@ -21,7 +21,7 @@ def test_get_total_notifications_filters_on_date_at_midnight(sample_template):
     create_notification(sample_template, created_at=datetime(2016, 10, 18, 0, 0))
     create_notification(sample_template, created_at=datetime(2016, 10, 18, 23, 59, 59))
     create_notification(sample_template, created_at=datetime(2016, 10, 19, 0, 0))
-    result = dao_get_total_notifications_sent_per_day_for_perfomance_platform(date(2016, 10, 18), date(2016, 10, 19))
+    result = dao_get_total_notifications_sent_per_day_for_performance_platform(date(2016, 10, 18), date(2016, 10, 19))
     assert result.messages_total == 2
 
 
@@ -32,7 +32,7 @@ def test_get_total_notifications_only_counts_api_notifications(sample_template,
     create_notification(sample_template, job=sample_job)
     create_notification(sample_template, job=sample_job)
     create_notification(sample_template, api_key=sample_api_key)
-    result = dao_get_total_notifications_sent_per_day_for_perfomance_platform(date(2016, 10, 18), date(2016, 10, 19))
+    result = dao_get_total_notifications_sent_per_day_for_performance_platform(date(2016, 10, 18), date(2016, 10, 19))
     assert result.messages_total == 1
 
 
@@ -45,7 +45,7 @@ def test_get_total_notifications_ignores_test_keys(sample_template):
     create_notification(sample_template, key_type=KEY_TYPE_TEAM)
     create_notification(sample_template, key_type=KEY_TYPE_TEAM)
     create_notification(sample_template, key_type=KEY_TYPE_TEST)
-    result = dao_get_total_notifications_sent_per_day_for_perfomance_platform(date(2016, 10, 18), date(2016, 10, 19))
+    result = dao_get_total_notifications_sent_per_day_for_performance_platform(date(2016, 10, 18), date(2016, 10, 19))
     assert result.messages_total == 4
 
 
@@ -62,7 +62,7 @@ def test_get_total_notifications_ignores_letters(
     create_notification(sample_email_template)
     create_notification(sample_email_template)
     create_notification(sample_letter_template)
-    result = dao_get_total_notifications_sent_per_day_for_perfomance_platform(date(2016, 10, 18), date(2016, 10, 19))
+    result = dao_get_total_notifications_sent_per_day_for_performance_platform(date(2016, 10, 18), date(2016, 10, 19))
     assert result.messages_total == 4
 
 
@@ -74,7 +74,7 @@ def test_get_total_notifications_counts_messages_within_10_seconds(sample_templa
     create_notification(sample_template, sent_at=created_at + timedelta(seconds=10))
     create_notification(sample_template, sent_at=created_at + timedelta(seconds=15))
 
-    result = dao_get_total_notifications_sent_per_day_for_perfomance_platform(date(2016, 10, 18), date(2016, 10, 19))
+    result = dao_get_total_notifications_sent_per_day_for_performance_platform(date(2016, 10, 18), date(2016, 10, 19))
     assert result.messages_total == 3
     assert result.messages_within_10_secs == 2
 
@@ -82,13 +82,13 @@ def test_get_total_notifications_counts_messages_within_10_seconds(sample_templa
 @freeze_time('2016-10-18T10:00')
 def test_get_total_notifications_counts_messages_that_have_not_sent(sample_template):
     create_notification(sample_template, status='created', sent_at=None)
-    result = dao_get_total_notifications_sent_per_day_for_perfomance_platform(date(2016, 10, 18), date(2016, 10, 19))
+    result = dao_get_total_notifications_sent_per_day_for_performance_platform(date(2016, 10, 18), date(2016, 10, 19))
     assert result.messages_total == 1
     assert result.messages_within_10_secs == 0
 
 
 @freeze_time('2016-10-18T10:00')
 def test_get_total_notifications_returns_zero_if_no_data(notify_db_session):
-    result = dao_get_total_notifications_sent_per_day_for_perfomance_platform(date(2016, 10, 18), date(2016, 10, 19))
+    result = dao_get_total_notifications_sent_per_day_for_performance_platform(date(2016, 10, 18), date(2016, 10, 19))
     assert result.messages_total == 0
     assert result.messages_within_10_secs == 0