diff --git a/src/util-cuda-buffer.c b/src/util-cuda-buffer.c
index cb3c51df9e..efaef9ffa9 100644
--- a/src/util-cuda-buffer.c
+++ b/src/util-cuda-buffer.c
@@ -885,8 +885,11 @@ int CudaBufferTest03(void)
     }
 
     slice = CudaBufferGetSlice(data, 16, NULL);
+    BUG_ON(slice == NULL);
     slice = CudaBufferGetSlice(data, 16, NULL);
+    BUG_ON(slice == NULL);
     slice = CudaBufferGetSlice(data, 24, NULL);
+    BUG_ON(slice == NULL);
 
     /* culling */
     CudaBufferCulledInfo culled_info;