1 files changed, 4 insertions, 3 deletions
diff --git a/synapse/config/tracer.py b/synapse/config/tracer.py
index 7aff618ea6..3472a9a01b 100644
--- a/synapse/config/tracer.py
+++ b/synapse/config/tracer.py
@@ -12,8 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from typing import Set
+from typing import Any, Set
 
+from synapse.types import JsonDict
 from synapse.util.check_dependencies import DependencyException, check_requirements
 
 from ._base import Config, ConfigError
@@ -22,7 +23,7 @@ from ._base import Config, ConfigError
 class TracerConfig(Config):
     section = "tracing"
 
-    def read_config(self, config, **kwargs):
+    def read_config(self, config: JsonDict, **kwargs: Any) -> None:
         opentracing_config = config.get("opentracing")
         if opentracing_config is None:
             opentracing_config = {}
@@ -65,7 +66,7 @@ class TracerConfig(Config):
                 )
             self.force_tracing_for_users.add(u)
 
-    def generate_config_section(cls, **kwargs):
+    def generate_config_section(cls, **kwargs: Any) -> str:
         return """\
         ## Opentracing ##