diff --git a/main.py b/main.py
index 7cf457f..1b9066d 100644
--- a/main.py
+++ b/main.py
@@ -455,7 +455,6 @@ if __name__ == "__main__":
         handler = WeechatHandler()
         handler.format_string = "{record.channel}: {record.message}"
         handler.push_application()
-        nio.http.logger.level = logbook.DEBUG
 
         # TODO if this fails we should abort and unload the script.
         matrix.globals.CONFIG = W.config_new("matrix",
diff --git a/matrix/config.py b/matrix/config.py
index 4bc8850..e259d75 100644
--- a/matrix/config.py
+++ b/matrix/config.py
@@ -16,6 +16,9 @@
 
 from __future__ import unicode_literals
 
+import nio
+import logbook
+
 from matrix.plugin_options import (Option, RedactType, ServerBufferType)
 
 import matrix.globals
@@ -30,6 +33,19 @@ def matrix_config_reload_cb(data, config_file):
     return W.WEECHAT_RC_OK
 
 
+def change_log_level(category, level):
+    if category == "all":
+        nio.logger_group.level = level
+    elif category == "http":
+        nio.http.logger.level = level
+    elif category == "client":
+        nio.client.logger.level = level
+    elif category == "events":
+        nio.events.logger.level = level
+    elif category == "responses":
+        nio.responses.logger.level = level
+
+
 @utf8_decode
 def matrix_config_change_cb(data, option):
     option_name = key_from_value(OPTIONS.options, option)
@@ -49,6 +65,36 @@ def matrix_config_change_cb(data, option):
     elif option_name == "max_backlog_sync_events":
         OPTIONS.backlog_limit = W.config_integer(option)
 
+    elif option_name == "debug_level":
+        value = W.config_integer(option)
+        if value == 0:
+            OPTIONS.debug_level = logbook.ERROR
+        elif value == 1:
+            OPTIONS.debug_level = logbook.WARNING
+        elif value == 2:
+            OPTIONS.debug_level = logbook.INFO
+        elif value == 3:
+            OPTIONS.debug_level = logbook.DEBUG
+
+        change_log_level(OPTIONS.debug_category, OPTIONS.debug_level)
+
+    elif option_name == "debug_category":
+        value = W.config_integer(option)
+        change_log_level(OPTIONS.debug_category, logbook.ERROR)
+
+        if value == 0:
+            OPTIONS.debug_category = "all"
+        elif value == 1:
+            OPTIONS.debug_category = "http"
+        elif value == 2:
+            OPTIONS.debug_category = "client"
+        elif value == 3:
+            OPTIONS.debug_category = "events"
+        elif value == 4:
+            OPTIONS.debug_category = "responses"
+
+        change_log_level(OPTIONS.debug_category, OPTIONS.debug_level)
+
     elif option_name == "fetch_backlog_on_pgup":
         OPTIONS.enable_backlog = W.config_boolean(option)
 
@@ -80,7 +126,11 @@ def matrix_config_init(config_file):
         Option("max_backlog_sync_events", "integer", "", 1, 100, "10",
                ("How many events to fetch during backlog fetching")),
         Option("fetch_backlog_on_pgup", "boolean", "", 0, 0, "on",
-               ("Fetch messages in the backlog on a window page up event"))
+               ("Fetch messages in the backlog on a window page up event")),
+        Option("debug_level", "integer", "error|warn|info|debug", 0, 0,
+               "off", "Enable network protocol debugging."),
+        Option("debug_category", "integer", "all|http|client|events|responses",
+               0, 0, "all", "Debugging category")
     ]
 
     def add_global_options(section, options):
@@ -101,8 +151,8 @@ def matrix_config_init(config_file):
 
     add_global_options(section, look_options)
 
-    section = W.config_new_section(config_file, "network", 0, 0, "", "", "", "",
-                                   "", "", "", "", "", "")
+    section = W.config_new_section(config_file, "network", 0, 0, "", "", "",
+                                   "", "", "", "", "", "", "")
 
     add_global_options(section, network_options)
 
diff --git a/matrix/plugin_options.py b/matrix/plugin_options.py
index fc0ecf5..a872a85 100644
--- a/matrix/plugin_options.py
+++ b/matrix/plugin_options.py
@@ -15,6 +15,9 @@
 # CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 from __future__ import unicode_literals
+
+import logbook
+
 from collections import namedtuple
 from enum import Enum, unique
 
@@ -49,7 +52,8 @@ class PluginOptions:
 
     def __init__(self):
         self.redaction_type = RedactType.STRIKETHROUGH  # type: RedactType
-        self.look_server_buf = ServerBufferType.MERGE_CORE  # type: ServerBufferType
+        self.look_server_buf = ServerBufferType.MERGE_CORE  \
+            # type: ServerBufferType
 
         self.sync_limit = 30  # type: int
         self.backlog_limit = 10  # type: int
@@ -59,4 +63,6 @@ class PluginOptions:
         self.redaction_comp_len = 50  # type: int
 
         self.options = dict()  # type: Dict[str, weechat.config_option]
-        self.debug = []  # type: List[DebugType]
+        self.debug = []
+        self.debug_level = logbook.ERROR
+        self.debug_category = "all"