diff --git a/coco.py b/coco.py
index ccb551b711..7ab76af322 100644
--- a/coco.py
+++ b/coco.py
@@ -354,6 +354,7 @@ class InferenceConfig(CocoConfig):
             # one image at a time. Batch size = GPU_COUNT * IMAGES_PER_GPU
             GPU_COUNT = 1
             IMAGES_PER_GPU = 1
+            DETECTION_MIN_CONFIDENCE = 0
         config = InferenceConfig()
     config.display()