diff --git a/include/cudaKDTree/cukd/spatial-kdtree.h b/include/cudaKDTree/cukd/spatial-kdtree.h
index 03d56e2d..06e53cc3 100644
--- a/include/cudaKDTree/cukd/spatial-kdtree.h
+++ b/include/cudaKDTree/cukd/spatial-kdtree.h
@@ -20,6 +20,7 @@
 #include <cub/cub.cuh>
 #include <cuda.h>
 #include <cuda_runtime_api.h>
+#include <cfloat>
 
 namespace cukd {
 
diff --git a/src/TurboDWG.cu b/src/TurboDWG.cu
index 640a3fe3..d92b0962 100644
--- a/src/TurboDWG.cu
+++ b/src/TurboDWG.cu
@@ -1,5 +1,5 @@
 # include "TurboDWG.h"
-
+#include <thrust/sort.h>   
 #define gpuErrchk(ans) { gpuAssert((ans), #ans, __FILE__, __LINE__); }
 inline void gpuAssert(cudaError_t code, const char* command, const char* file, int line, bool abort = true)
 {
@@ -1006,4 +1006,4 @@ void TurboDWG::OutlierFilter(float* As, float threshold, int point_num)
 
 	AsFiltertoZero << < blocksPerGrid, threadsPerBlock >> > (As, raw_indices, threshold_max_index);
 	cudaDeviceSynchronize();
-}
\ No newline at end of file
+}