diff --git a/c2h/generators.cu b/c2h/generators.cu
index 02d63e96fc3..453ffa53a81 100644
--- a/c2h/generators.cu
+++ b/c2h/generators.cu
@@ -552,10 +552,10 @@ INSTANTIATE(double);
 INSTANTIATE(bool);
 INSTANTIATE(char);
 
-#ifdef _CCCL_HAS_NVFP16
+#if _CCCL_HAS_NVFP16()
 INSTANTIATE(half_t);
 INSTANTIATE(__half);
-#endif // _CCCL_HAS_NVFP16
+#endif // _CCCL_HAS_NVFP16()
 
 #if _CCCL_HAS_NVBF16()
 INSTANTIATE(bfloat16_t);
diff --git a/c2h/include/c2h/generators.h b/c2h/include/c2h/generators.h
index 8b7a00cca64..5ac681ed4e6 100644
--- a/c2h/include/c2h/generators.h
+++ b/c2h/include/c2h/generators.h
@@ -37,7 +37,7 @@
 #if THRUST_DEVICE_SYSTEM == THRUST_DEVICE_SYSTEM_CUDA
 #  if _CCCL_HAS_NVFP16()
 #    include <cuda_fp16.h>
-#  endif // _CCCL_HAS_NVFP16
+#  endif // _CCCL_HAS_NVFP16()
 
 #  if _CCCL_HAS_NVBF16()
 _CCCL_DIAG_PUSH
diff --git a/cub/cub/util_type.cuh b/cub/cub/util_type.cuh
index b0a4300f980..358e6e6bc4a 100644
--- a/cub/cub/util_type.cuh
+++ b/cub/cub/util_type.cuh
@@ -964,7 +964,7 @@ struct FpLimits<__nv_bfloat16>
     return reinterpret_cast<__nv_bfloat16&>(lowest_word);
   }
 };
-#  endif // _CCCL_HAS_NVBF16
+#  endif // _CCCL_HAS_NVBF16()
 
 #  if _CCCL_HAS_NVFP8()
 template <>
diff --git a/libcudacxx/include/cuda/std/__internal/features.h b/libcudacxx/include/cuda/std/__internal/features.h
index c1241b03982..80bc8dc4c21 100644
--- a/libcudacxx/include/cuda/std/__internal/features.h
+++ b/libcudacxx/include/cuda/std/__internal/features.h
@@ -99,7 +99,7 @@
 #ifndef _LIBCUDACXX_HAS_NVBF16
 #  if _CCCL_HAS_NVBF16() && _CCCL_CUDACC_AT_LEAST(12, 2)
 #    define _LIBCUDACXX_HAS_NVBF16
-#  endif // _CCCL_HAS_NVBF16 && _CCCL_CUDACC_AT_LEAST(12, 2)
+#  endif // _CCCL_HAS_NVBF16() && _CCCL_CUDACC_AT_LEAST(12, 2)
 #endif // !_LIBCUDACXX_HAS_NVBF16
 
 // NVCC does not have a way of silencing non '_' prefixed UDLs