diff --git a/watcher/decision_engine/model/diskInfo.py b/watcher/decision_engine/model/disk_info.py
similarity index 100%
rename from watcher/decision_engine/model/diskInfo.py
rename to watcher/decision_engine/model/disk_info.py
diff --git a/watcher/tests/decision_engine/model/test_diskinfo.py b/watcher/tests/decision_engine/model/test_disk_info.py
similarity index 94%
rename from watcher/tests/decision_engine/model/test_diskinfo.py
rename to watcher/tests/decision_engine/model/test_disk_info.py
index a8adc4d2e..caf459335 100644
--- a/watcher/tests/decision_engine/model/test_diskinfo.py
+++ b/watcher/tests/decision_engine/model/test_disk_info.py
@@ -17,7 +17,7 @@
 # limitations under the License.
 #
 
-from watcher.decision_engine.model.diskInfo import DiskInfo
+from watcher.decision_engine.model.disk_info import DiskInfo
 from watcher.tests import base