diff --git a/core/iwasm/libraries/wasi-nn/include/wasi_nn_types.h b/core/iwasm/libraries/wasi-nn/include/wasi_nn_types.h
index 787cc6a5c..5a8136ca9 100644
--- a/core/iwasm/libraries/wasi-nn/include/wasi_nn_types.h
+++ b/core/iwasm/libraries/wasi-nn/include/wasi_nn_types.h
@@ -160,10 +160,6 @@ typedef struct {
     BACKEND_DEINITIALIZE deinit;
 } api_function;
 
-void
-wasi_nn_dump_tensor_dimension(tensor_dimensions *dim, int32_t output_len,
-                              char *output);
-
 #ifdef __cplusplus
 }
 #endif