diff --git a/glances/plugins/diskio/__init__.py b/glances/plugins/diskio/__init__.py
index f7113e85..9e9bcc7c 100644
--- a/glances/plugins/diskio/__init__.py
+++ b/glances/plugins/diskio/__init__.py
@@ -89,6 +89,10 @@ class PluginModel(GlancesPluginModel):
             self.hide_zero = False
         self.hide_zero_fields = ['read_bytes', 'write_bytes']
 
+        # Force a first update because we need two updates to have the first stat
+        self.update()
+        self.refresh_timer.set(0)
+
     def get_key(self):
         """Return the key of the list."""
         return 'disk_name'
diff --git a/glances/plugins/network/__init__.py b/glances/plugins/network/__init__.py
index 97dff671..be354355 100644
--- a/glances/plugins/network/__init__.py
+++ b/glances/plugins/network/__init__.py
@@ -105,7 +105,7 @@ class PluginModel(GlancesPluginModel):
             self.hide_zero = False
         self.hide_zero_fields = ['bytes_recv', 'bytes_sent']
 
-        # Force a first update because we need two update to have the first stat
+        # Force a first update because we need two updates to have the first stat
         self.update()
         self.refresh_timer.set(0)