diff --git a/src/cuda.h b/src/cuda.h
index e167d367..50bb82b4 100644
--- a/src/cuda.h
+++ b/src/cuda.h
@@ -36,19 +36,19 @@ extern int gpu_index;
 #ifdef __cplusplus
 extern "C" {
 #endif // __cplusplus
-	void check_error(cudaError_t status);
-	cublasHandle_t blas_handle();
-	float *cuda_make_array(float *x, size_t n);
-	int *cuda_make_int_array(size_t n);
-	void cuda_push_array(float *x_gpu, float *x, size_t n);
-	void cuda_pull_array(float *x_gpu, float *x, size_t n);
-	YOLODLL_API void cuda_set_device(int n);
-	int cuda_get_device();
-	void cuda_free(float *x_gpu);
-	void cuda_random(float *x_gpu, size_t n);
-	float cuda_compare(float *x_gpu, float *x, size_t n, char *s);
-	dim3 cuda_gridsize(size_t n);
-	cudaStream_t get_cuda_stream();
+    void check_error(cudaError_t status);
+    cublasHandle_t blas_handle();
+    float *cuda_make_array(float *x, size_t n);
+    int *cuda_make_int_array(size_t n);
+    void cuda_push_array(float *x_gpu, float *x, size_t n);
+    YOLODLL_API void cuda_pull_array(float *x_gpu, float *x, size_t n);
+    YOLODLL_API void cuda_set_device(int n);
+    int cuda_get_device();
+    void cuda_free(float *x_gpu);
+    void cuda_random(float *x_gpu, size_t n);
+    float cuda_compare(float *x_gpu, float *x, size_t n, char *s);
+    dim3 cuda_gridsize(size_t n);
+    cudaStream_t get_cuda_stream();
 #ifdef __cplusplus
 }
 #endif // __cplusplus