diff --git a/intern/cycles/kernel/kernels/cpu/kernel_cpu_image.h b/intern/cycles/kernel/kernels/cpu/kernel_cpu_image.h
index 44c658d4cab..59b96c86c50 100644
--- a/intern/cycles/kernel/kernels/cpu/kernel_cpu_image.h
+++ b/intern/cycles/kernel/kernels/cpu/kernel_cpu_image.h
@@ -18,6 +18,7 @@
 #define __KERNEL_CPU_IMAGE_H__
 
 #ifdef WITH_NANOVDB
+#  define NANOVDB_USE_INTRINSICS
 #  include <nanovdb/NanoVDB.h>
 #  include <nanovdb/util/SampleFromVoxels.h>
 #endif
diff --git a/intern/cycles/kernel/kernels/cuda/kernel_cuda_image.h b/intern/cycles/kernel/kernels/cuda/kernel_cuda_image.h
index 001bc652810..82ad9225fc3 100644
--- a/intern/cycles/kernel/kernels/cuda/kernel_cuda_image.h
+++ b/intern/cycles/kernel/kernels/cuda/kernel_cuda_image.h
@@ -15,6 +15,8 @@
  */
 
 #ifdef WITH_NANOVDB
+#  define NDEBUG /* Disable "assert" in device code */
+#  define NANOVDB_USE_INTRINSICS
 #  include "nanovdb/NanoVDB.h"
 #  include "nanovdb/util/SampleFromVoxels.h"
 #endif