diff --git a/Image/detection/ops/setup.py b/Image/detection/ops/setup.py
index 1c13880..272ef8b 100644
--- a/Image/detection/ops/setup.py
+++ b/Image/detection/ops/setup.py
@@ -40,7 +40,7 @@ def get_extensions():
             '-D__CUDA_NO_HALF2_OPERATORS__',
         ]
     else:
-        raise NotImplementedError('Cuda is not availabel')
+        raise NotImplementedError('Cuda is not available')
 
     sources = [os.path.join(extensions_dir, s) for s in sources]
     include_dirs = [extensions_dir]