diff --git a/zerver/lib/actions.py b/zerver/lib/actions.py
index 07d255039c..ed83ce3f37 100644
--- a/zerver/lib/actions.py
+++ b/zerver/lib/actions.py
@@ -3361,15 +3361,17 @@ def do_delete_avatar_image(user: UserProfile, acting_user: Optional[UserProfile]
     do_change_avatar_fields(user, UserProfile.AVATAR_FROM_GRAVATAR, acting_user=acting_user)
     delete_avatar_image(user)
 
-def do_change_icon_source(realm: Realm, icon_source: str, log: bool=True) -> None:
+def do_change_icon_source(realm: Realm, icon_source: str, acting_user: Optional[UserProfile]=None) -> None:
     realm.icon_source = icon_source
     realm.icon_version += 1
     realm.save(update_fields=["icon_source", "icon_version"])
 
-    if log:
-        log_event({'type': 'realm_change_icon',
-                   'realm': realm.string_id,
-                   'icon_source': icon_source})
+    event_time = timezone_now()
+    RealmAuditLog.objects.create(realm=realm,
+                                 event_type=RealmAuditLog.REALM_ICON_SOURCE_CHANGED,
+                                 extra_data={'icon_source': icon_source,
+                                             'icon_version': realm.icon_version},
+                                 event_time=event_time, acting_user=acting_user)
 
     send_event(realm,
                dict(type='realm',
diff --git a/zerver/models.py b/zerver/models.py
index ec6acca437..ba16659e6e 100644
--- a/zerver/models.py
+++ b/zerver/models.py
@@ -2720,6 +2720,7 @@ class AbstractRealmAuditLog(models.Model):
     REALM_LOGO_CHANGED = 205
     REALM_EXPORTED = 206
     REALM_PROPERTY_CHANGED = 207
+    REALM_ICON_SOURCE_CHANGED = 208
 
     SUBSCRIPTION_CREATED = 301
     SUBSCRIPTION_ACTIVATED = 302
diff --git a/zerver/tests/test_audit_log.py b/zerver/tests/test_audit_log.py
index 7420aa9c79..f2bbe76f83 100644
--- a/zerver/tests/test_audit_log.py
+++ b/zerver/tests/test_audit_log.py
@@ -12,6 +12,7 @@ from zerver.lib.actions import (
     do_activate_user,
     do_change_avatar_fields,
     do_change_bot_owner,
+    do_change_icon_source,
     do_change_password,
     do_change_tos_version,
     do_change_user_delivery_email,
@@ -326,3 +327,19 @@ class TestRealmAuditLog(ZulipTestCase):
                 RealmAuditLog.OLD_VALUE: {'property': 'signup_notifications_stream', 'value': old_value},
                 RealmAuditLog.NEW_VALUE: {'property': 'signup_notifications_stream', 'value': stream.id}
             })).count(), 1)
+
+    def test_change_icon_source(self) -> None:
+        test_start = timezone_now()
+        realm = get_realm('zulip')
+        user = self.example_user('hamlet')
+        icon_source = 'G'
+        do_change_icon_source(realm, icon_source, acting_user=user)
+        audit_entries = RealmAuditLog.objects.filter(
+            realm=realm,
+            event_type=RealmAuditLog.REALM_ICON_SOURCE_CHANGED,
+            acting_user=user,
+            event_time__gte=test_start)
+        self.assertEqual(len(audit_entries), 1)
+        self.assertEqual(icon_source, realm.icon_source)
+        self.assertEqual(audit_entries.first().extra_data,
+                         "{'icon_source': 'G', 'icon_version': 2}")
diff --git a/zerver/tests/test_import_export.py b/zerver/tests/test_import_export.py
index 6f19a764a9..3c45e4a244 100644
--- a/zerver/tests/test_import_export.py
+++ b/zerver/tests/test_import_export.py
@@ -280,7 +280,7 @@ class ImportExportTest(ZulipTestCase):
 
         with get_test_image_file('img.png') as img_file:
             upload.upload_backend.upload_realm_icon_image(img_file, user_profile)
-            do_change_icon_source(realm, Realm.ICON_UPLOADED, False)
+            do_change_icon_source(realm, Realm.ICON_UPLOADED)
 
         with get_test_image_file('img.png') as img_file:
             upload.upload_backend.upload_realm_logo_image(img_file, user_profile, night=False)
diff --git a/zerver/views/realm_icon.py b/zerver/views/realm_icon.py
index cc6d4f44fb..05dd686f09 100644
--- a/zerver/views/realm_icon.py
+++ b/zerver/views/realm_icon.py
@@ -24,7 +24,7 @@ def upload_icon(request: HttpRequest, user_profile: UserProfile) -> HttpResponse
             settings.MAX_ICON_FILE_SIZE,
         ))
     upload_icon_image(icon_file, user_profile)
-    do_change_icon_source(user_profile.realm, user_profile.realm.ICON_UPLOADED)
+    do_change_icon_source(user_profile.realm, user_profile.realm.ICON_UPLOADED, acting_user=user_profile)
     icon_url = realm_icon_url(user_profile.realm)
 
     json_result = dict(
@@ -38,7 +38,7 @@ def delete_icon_backend(request: HttpRequest, user_profile: UserProfile) -> Http
     # We don't actually delete the icon because it might still
     # be needed if the URL was cached and it is rewrited
     # in any case after next update.
-    do_change_icon_source(user_profile.realm, user_profile.realm.ICON_FROM_GRAVATAR)
+    do_change_icon_source(user_profile.realm, user_profile.realm.ICON_FROM_GRAVATAR, acting_user=user_profile)
     gravatar_url = realm_icon_url(user_profile.realm)
     json_result = dict(
         icon_url=gravatar_url,