vmd-1.9.1/src/CUDAMarchingCubes.cu | 1 +
 vmd-1.9.1/src/CUDAQuickSurf.cu     | 1 +
 2 files changed, 2 insertions(+)

diff --git a/vmd-1.9.1/src/CUDAMarchingCubes.cu b/vmd-1.9.1/src/CUDAMarchingCubes.cu
index 5bfe7bf..36faaf0 100755
--- a/vmd-1.9.1/src/CUDAMarchingCubes.cu
+++ b/vmd-1.9.1/src/CUDAMarchingCubes.cu
@@ -45,6 +45,7 @@
 #include "CUDAMarchingCubes.h"
 #include <thrust/scan.h>
 #include <thrust/functional.h>
+#include <thrust/device_ptr.h>
 
 // The number of threads to use for triangle generation 
 // (limited by shared memory size)
diff --git a/vmd-1.9.1/src/CUDAQuickSurf.cu b/vmd-1.9.1/src/CUDAQuickSurf.cu
index a21ebde..56a42c8 100755
--- a/vmd-1.9.1/src/CUDAQuickSurf.cu
+++ b/vmd-1.9.1/src/CUDAQuickSurf.cu
@@ -22,6 +22,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <cuda.h>
+#include <thrust/device_ptr.h>
 
 #if CUDART_VERSION < 4000
 #error The VMD QuickSurf feature requires CUDA 4.0 or later