diff --git a/src/changed-tiles/Dockerfile b/src/changed-tiles/Dockerfile
index 1246bfd..a0bbb30 100644
--- a/src/changed-tiles/Dockerfile
+++ b/src/changed-tiles/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.5.3
+FROM golang:1.4
 
 RUN go get github.com/lukasmartinelli/pgclimb \
  && go install github.com/lukasmartinelli/pgclimb
diff --git a/src/generate-jobs/generate_jobs.py b/src/generate-jobs/generate_jobs.py
index 28c0dea..0825e10 100755
--- a/src/generate-jobs/generate_jobs.py
+++ b/src/generate-jobs/generate_jobs.py
@@ -2,7 +2,7 @@
 """Generate jobs for rendering tiles in pyramid and list format in JSON format
 
 Usage:
-  generate_jobs.py pyramid <x> <y> <z> --job-zoom=<job-zoom>
+  generate_jobs.py pyramid <x> <y> <z> --job-zoom=<job-zoom> [--max-zoom=<max-zoom>]
   generate_jobs.py list <list_file> --batch-size=<batch_size>
   generate_jobs.py (-h | --help)
   generate_jobs.py --version
@@ -10,7 +10,8 @@ Usage:
 Options:
   -h --help                    Show this screen.
   --version                    Show version.
-  --job-zoom=<job-zoom>        Max zoom level for pyramid jobs.
+  --job-zoom=<job-zoom>        Job zoom level for pyramid jobs.
+  --max-zoom=<max-zoom>        Max zoom level for pyramid jobs. [default: 14]
   --batch-size=<batch_size>    Amount of tiles for list jobs.
 """
 
@@ -87,7 +88,7 @@ def split_tiles_into_batch_jobs(tiles, batch_size):
     yield create_list_batch_job(tiles_batch)
 
 
-def pyramid_jobs(x, y, z, job_zoom):
+def pyramid_jobs(x, y, z, job_zoom, max_zoom):
     """
     Generate pyramid jobs for a given job_zoom level
     starting at with the parent tile defined by x, y, z.
@@ -96,7 +97,7 @@ def pyramid_jobs(x, y, z, job_zoom):
         bounds = mercantile.bounds(x, y, z)
         yield create_pyramid_job(
             x=x, y=y,
-            min_zoom=z, max_zoom=14,
+            min_zoom=z, max_zoom=max_zoom,
             bounds=bounds
         )
         return
@@ -107,7 +108,7 @@ def pyramid_jobs(x, y, z, job_zoom):
     for tile in pyramid_zoom_level_tiles:
         bounds = mercantile.bounds(tile.x, tile.y, tile.z)
         yield create_pyramid_job(tile.x, tile.y, min_zoom=tile.z,
-                                 max_zoom=14, bounds=bounds)
+                                 max_zoom=max_zoom, bounds=bounds)
 
     bounds = mercantile.bounds(0 , 0 , 0)
     yield create_pyramid_job(0, 0, min_zoom=0, max_zoom=job_zoom-1, bounds=bounds)
@@ -117,12 +118,13 @@ if __name__ == '__main__':
 
     if args['pyramid']:
         job_zoom = int(args['--job-zoom'])
+        max_zoom = int(args['--max-zoom'])
 
         x = int(args['<x>'])
         y = int(args['<y>'])
         z = int(args['<z>'])
 
-        for job in pyramid_jobs(x, y, z, job_zoom):
+        for job in pyramid_jobs(x, y, z, job_zoom=job_zoom, max_zoom=max_zoom):
             print(json.dumps(job), flush=True)
 
     if args['list']:
diff --git a/src/generate-jobs/generate_world_jobs.sh b/src/generate-jobs/generate_world_jobs.sh
index 19ad826..90e6f5d 100755
--- a/src/generate-jobs/generate_world_jobs.sh
+++ b/src/generate-jobs/generate_world_jobs.sh
@@ -9,12 +9,18 @@ readonly TILE_X=${TILE_X:-"0"}
 readonly TILE_Y=${TILE_Y:-"0"}
 readonly TILE_Z=${TILE_Z:-"0"}
 readonly JOB_ZOOM=${JOB_ZOOM:-"8"}
+readonly WORLD_JOB=${WORLD_JOB:-"true"}
 
 function generate_world_jobs() {
     local jobs_file="$EXPORT_DATA_DIR/world_jobs.txt"
     local jobs_queue="jobs"
 
     python generate_jobs.py pyramid "$TILE_X" "$TILE_Y" "$TILE_Z" --job-zoom="$JOB_ZOOM" > $jobs_file
+
+    if [ "$WORLD_JOB" = true ] ; then
+        python generate_jobs.py pyramid "0" "0" "0" --job-zoom="0" --max-zoom="$((JOB_ZOOM-1))" >> $jobs_file
+    fi
+
     pipecat publish --amqpuri="$AMQP_URI" "$jobs_queue" < $jobs_file
 }
 
diff --git a/tools/integration-test/integration_test.py b/tools/integration-test/integration_test.py
index 81fc29f..ed1093b 100644
--- a/tools/integration-test/integration_test.py
+++ b/tools/integration-test/integration_test.py
@@ -114,6 +114,7 @@ def test_distributed_worker():
             '-e', 'TILE_Y={}'.format(y),
             '-e', 'TILE_Z={}'.format(z),
             '-e', 'JOB_ZOOM={}'.format(job_zoom),
+            '-e', 'WORLD_JOB=false',
             'generate-jobs'
         ])