diff --git a/extern/docker_ b/extern/docker_
index 03b5522..8f17d45 100644
--- a/extern/docker_
+++ b/extern/docker_
@@ -337,7 +337,7 @@ def status(client, mode):
     if mode == "config":
         print("graph_title Docker status")
         print("graph_vlabel containers")
-        print("graph_category virtualization")
+        print("graph_category container")
         print("graph_total All containers")
         print("running.label RUNNING")
         print("running.draw AREASTACK")
@@ -385,7 +385,7 @@ def containers(client, mode):
     if mode == "config":
         print("graph_title Docker containers")
         print("graph_vlabel containers")
-        print("graph_category virtualization")
+        print("graph_category container")
         print("containers_quantity.label Containers")
     else:
         print('containers_quantity.value', len(client.all_containers))
@@ -395,7 +395,7 @@ def images(client, mode):
     if mode == "config":
         print("graph_title Docker images")
         print("graph_vlabel images")
-        print("graph_category virtualization")
+        print("graph_category container")
         print("graph_total All images")
         print("intermediate_quantity.label Intermediate images")
         print("intermediate_quantity.draw AREASTACK")
@@ -420,7 +420,7 @@ def volumes(client, mode):
     if mode == "config":
         print("graph_title Docker volumes")
         print("graph_vlabel volumes")
-        print("graph_category virtualization")
+        print("graph_category container")
         print("volumes_quantity.label Volumes")
         print("volumes_quantity.draw AREASTACK")
         print("volumes_quantity.info Unused volumes can be deleted with "
@@ -438,7 +438,7 @@ def cpu(client, mode):
         print("graph_scale no")
         print("graph_period second")
         print("graph_vlabel CPU usage (%)")
-        print("graph_category virtualization")
+        print("graph_category container")
         print("graph_info This graph shows docker container CPU usage.")
         print("graph_total Total CPU usage")
         for container in client.all_containers:
@@ -455,7 +455,7 @@ def network(client, mode):
         print("graph_title Docker containers network usage")
         print("graph_args --base 1024 -l 0")
         print("graph_vlabel bits in (-) / out (+) per ${graph_period}")
-        print("graph_category virtualization")
+        print("graph_category container")
         print("graph_info This graph shows docker container network usage.")
         print("graph_total Total network usage")
         for container in client.all_containers:
@@ -481,7 +481,7 @@ def memory(client, mode):
         print("graph_title Docker containers memory usage")
         print("graph_args --base 1024 -l 0")
         print("graph_vlabel Bytes")
-        print("graph_category virtualization")
+        print("graph_category container")
         print("graph_info This graph shows docker container memory usage.")
         print("graph_total Total memory usage")
         for container in client.all_containers: