diff --git a/build/darknet/x64/darknet.py b/build/darknet/x64/darknet.py
index 10c9a456..5cfb26ba 100644
--- a/build/darknet/x64/darknet.py
+++ b/build/darknet/x64/darknet.py
@@ -59,7 +59,8 @@ class DETECTION(Structure):
                 ("prob", POINTER(c_float)),
                 ("mask", POINTER(c_float)),
                 ("objectness", c_float),
-                ("sort_class", c_int)]
+                ("sort_class", c_int),
+                ("uc", POINTER(c_float))]
 
 
 class IMAGE(Structure):
diff --git a/darknet.py b/darknet.py
index 10c9a456..5cfb26ba 100644
--- a/darknet.py
+++ b/darknet.py
@@ -59,7 +59,8 @@ class DETECTION(Structure):
                 ("prob", POINTER(c_float)),
                 ("mask", POINTER(c_float)),
                 ("objectness", c_float),
-                ("sort_class", c_int)]
+                ("sort_class", c_int),
+                ("uc", POINTER(c_float))]
 
 
 class IMAGE(Structure):