diff --git a/ultralytics/nn/modules/block.py b/ultralytics/nn/modules/block.py
index ac619c5e3..e0500e337 100644
--- a/ultralytics/nn/modules/block.py
+++ b/ultralytics/nn/modules/block.py
@@ -408,7 +408,7 @@ class C3k(C3):
     def __init__(self, c1, c2, n=1, shortcut=True, g=1, e=0.5):
         super().__init__(c1, c2, n, shortcut, g, e)
         c_ = int(c2 * e)  # hidden channels
-        self.m = nn.Sequential(*(Bottleneck(c_, c_, shortcut, g, k=(3, 3), e=1.0) for _ in range(n)))
+        self.m = nn.Sequential(*(RepBottleneck(c_, c_, shortcut, g, k=(3, 3), e=1.0) for _ in range(n)))
 
 
 class C3K(C3):