diff --git a/tilecloud_chain/format.py b/tilecloud_chain/format.py
index 4b6d90e47..844c6e511 100644
--- a/tilecloud_chain/format.py
+++ b/tilecloud_chain/format.py
@@ -1,6 +1,13 @@
 # -*- coding: utf-8 -*-
 
 
+def default_int(number_array):
+    return [
+        int(n) if n % 1 == 0 else n
+        for n in number_array
+    ]
+
+
 def size_format(number):
     for unit in ['o', 'Kio', 'Mio', 'Gio', 'Tio']:
         if number < 1024.0:
diff --git a/tilecloud_chain/generate.py b/tilecloud_chain/generate.py
index 0c665484f..6d283c2bc 100644
--- a/tilecloud_chain/generate.py
+++ b/tilecloud_chain/generate.py
@@ -21,7 +21,7 @@
 
 from tilecloud_chain import TileGeneration, HashDropper, HashLogger, DropEmpty, TilesFileStore, \
     add_comon_options, parse_tilecoord, quote, Count
-from tilecloud_chain.format import size_format, duration_format
+from tilecloud_chain.format import size_format, duration_format, default_int
 
 logger = logging.getLogger(__name__)
 
@@ -58,8 +58,8 @@ def _gene(self, options, gene, layer, dimensions=None):
         if options.get_bbox:
             try:
                 tilecoord = parse_tilecoord(options.get_bbox)
-                print("Tile bounds: [{:.2f},{:.2f},{:.2f},{:.2f}]".format(
-                    *gene.layer['grid_ref']['obj'].extent(tilecoord)
+                print("Tile bounds: [{},{},{},{}]".format(
+                    *default_int(gene.layer['grid_ref']['obj'].extent(tilecoord))
                 ))
                 exit()
             except ValueError as e:  # pragma: no cover
diff --git a/tilecloud_chain/tests/test_generate.py b/tilecloud_chain/tests/test_generate.py
index 13264c1df..7f3f43791 100644
--- a/tilecloud_chain/tests/test_generate.py
+++ b/tilecloud_chain/tests/test_generate.py
@@ -66,19 +66,19 @@ def test_get_bbox(self, l):
                 cmd='.build/venv/bin/generate_tiles {} '
                     '-c tilegeneration/test.yaml --get-bbox 4/4/4 -l point'.format(d),
                 main_func=generate.main,
-                expected="""Tile bounds: [425120.00,343600.00,426400.00,344880.00]
+                expected="""Tile bounds: [425120,343600,426400,344880]
 """)
             self.assert_cmd_equals(
                 cmd='.build/venv/bin/generate_tiles {} '
                     '-c tilegeneration/test.yaml --get-bbox 4/4/4:+1/+1 -l point'.format(d),
                 main_func=generate.main,
-                expected="""Tile bounds: [425120.00,343600.00,426400.00,344880.00]
+                expected="""Tile bounds: [425120,343600,426400,344880]
 """)
             self.assert_cmd_equals(
                 cmd='.build/venv/bin/generate_tiles {} '
                     '-c tilegeneration/test.yaml --get-bbox 4/4/4:+2/+2 -l point'.format(d),
                 main_func=generate.main,
-                expected="""Tile bounds: [425120.00,342320.00,427680.00,344880.00]
+                expected="""Tile bounds: [425120,342320,427680,344880]
 """)
         l.check()