diff --git a/tests/unit/test_p4_tma_descriptor_dump.cu b/tests/unit/test_p4_tma_descriptor_dump.cu
index 2a71221e..c8ab4c23 100644
--- a/tests/unit/test_p4_tma_descriptor_dump.cu
+++ b/tests/unit/test_p4_tma_descriptor_dump.cu
@@ -1,6 +1,15 @@
 /**
  * P4: Dump TMA descriptor bytes for comparison.
- * CUDA 13.2 compatible — uses correct API signature.
+ * CUDA 13.2 compatible.
+ *
+ * API signature on CUDA 13.2:
+ * cuTensorMapEncodeTiled(CUtensorMap*, cuuint32_t rank,
+ *   CUtensorMapDataType, void*,
+ *   cuuint64_t* tensorDims, cuuint64_t* globalStrides,
+ *   cuuint32_t* boxDims, cuuint32_t* elementStrides,
+ *   CUtensorMapInterleave, CUtensorMapSwizzle, CUtensorMapL2promotion)
+ *
+ * Note: NO OOB fill parameter on CUDA 13.2 (10 params, not 11).
  */
 #include <cuda.h>
 #include <cuda_runtime.h>
@@ -8,33 +17,6 @@
 #include <cstdint>
 #include <cstring>
 
-/* CUDA 13.2 cuTensorMapEncodeTiled signature:
- * CUresult cuTensorMapEncodeTiled(
- *   CUtensorMap *tensorMap,
- *   cuuint32_t tensorRank,
- *   CUtensorMapDataType dataType,
- *   void *globalAddress,
- *   const cuuint64_t *tensorDims,
- *   const cuuint64_t *globalStrides,
- *   const cuuint32_t *boxDims,
- *   const cuuint32_t *elementStrides,
- *   CUtensorMapInterleave interleave,
- *   CUtensorMapSwizzle swizzle,
- *   CUtensorMapL2promotion l2Promotion,
- *   CUtensorMapOOBfill oobFill
- * );
- *
- * Note: OOB fill is CUtensorMapOOBfill (lowercase f) in CUDA 13.2
- */
-
-// Define missing enum values if needed
-#ifndef CU_TENSOR_MAP_OOB_FILL_NONE
-#define CU_TENSOR_MAP_OOB_FILL_NONE ((CUtensorMapOOBfill)0)
-#endif
-#ifndef CU_TENSOR_MAP_OOB_FILL_ZERO
-#define CU_TENSOR_MAP_OOB_FILL_ZERO ((CUtensorMapOOBfill)1)
-#endif
-
 int main() {
     const int ROWS = 128;
     const int COLS = 16;
@@ -66,7 +48,7 @@ int main() {
     res = cuTensorMapEncodeTiled(&tma_desc, 2, CU_TENSOR_MAP_DATA_TYPE_BFLOAT16,
         d_ptr, tensorDims, globalStrides, boxDims, elementStrides,
         CU_TENSOR_MAP_INTERLEAVE_NONE, CU_TENSOR_MAP_SWIZZLE_NONE,
-        CU_TENSOR_MAP_L2_PROMOTION_NONE, CU_TENSOR_MAP_OOB_FILL_NONE);
+        CU_TENSOR_MAP_L2_PROMOTION_NONE);
     if (res == CUDA_SUCCESS) dump_desc("NO swizzle", tma_desc);
     else printf("=== NO swizzle: FAILED (%d) ===\n", res);
 
@@ -74,26 +56,10 @@ int main() {
     res = cuTensorMapEncodeTiled(&tma_desc, 2, CU_TENSOR_MAP_DATA_TYPE_BFLOAT16,
         d_ptr, tensorDims, globalStrides, boxDims, elementStrides,
         CU_TENSOR_MAP_INTERLEAVE_NONE, CU_TENSOR_MAP_SWIZZLE_128B,
-        CU_TENSOR_MAP_L2_PROMOTION_NONE, CU_TENSOR_MAP_OOB_FILL_NONE);
+        CU_TENSOR_MAP_L2_PROMOTION_NONE);
     if (res == CUDA_SUCCESS) dump_desc("SWIZZLE_128B", tma_desc);
     else printf("=== SWIZZLE_128B: FAILED (%d) ===\n", res);
 
-    // 3: NO swizzle, OOB_FILL_ZERO
-    res = cuTensorMapEncodeTiled(&tma_desc, 2, CU_TENSOR_MAP_DATA_TYPE_BFLOAT16,
-        d_ptr, tensorDims, globalStrides, boxDims, elementStrides,
-        CU_TENSOR_MAP_INTERLEAVE_NONE, CU_TENSOR_MAP_SWIZZLE_NONE,
-        CU_TENSOR_MAP_L2_PROMOTION_NONE, CU_TENSOR_MAP_OOB_FILL_ZERO);
-    if (res == CUDA_SUCCESS) dump_desc("NO swizzle + OOB_FILL_ZERO", tma_desc);
-    else printf("=== NO swizzle + OOB_FILL_ZERO: FAILED (%d) ===\n", res);
-
-    // 4: SWIZZLE_128B, OOB_FILL_ZERO
-    res = cuTensorMapEncodeTiled(&tma_desc, 2, CU_TENSOR_MAP_DATA_TYPE_BFLOAT16,
-        d_ptr, tensorDims, globalStrides, boxDims, elementStrides,
-        CU_TENSOR_MAP_INTERLEAVE_NONE, CU_TENSOR_MAP_SWIZZLE_128B,
-        CU_TENSOR_MAP_L2_PROMOTION_NONE, CU_TENSOR_MAP_OOB_FILL_ZERO);
-    if (res == CUDA_SUCCESS) dump_desc("SWIZZLE_128B + OOB_FILL_ZERO", tma_desc);
-    else printf("=== SWIZZLE_128B + OOB_FILL_ZERO: FAILED (%d) ===\n", res);
-
     cudaFree(d_ptr);
     printf("\nPASSED\n");
     return 0;