diff --git a/Samples/boxFilterNPP/boxFilterNPP.cpp b/Samples/boxFilterNPP/boxFilterNPP.cpp
index 69e08f57..ccb337cf 100644
--- a/Samples/boxFilterNPP/boxFilterNPP.cpp
+++ b/Samples/boxFilterNPP/boxFilterNPP.cpp
@@ -167,9 +167,6 @@ int main(int argc, char *argv[]) {
     saveImage(sResultFilename, oHostDst);
     std::cout << "Saved image: " << sResultFilename << std::endl;
 
-    nppiFree(oDeviceSrc.data());
-    nppiFree(oDeviceDst.data());
-
     exit(EXIT_SUCCESS);
   } catch (npp::Exception &rException) {
     std::cerr << "Program error! The following exception occurred: \n";
diff --git a/Samples/cannyEdgeDetectorNPP/cannyEdgeDetectorNPP.cpp b/Samples/cannyEdgeDetectorNPP/cannyEdgeDetectorNPP.cpp
index a99ac1a9..46094f43 100644
--- a/Samples/cannyEdgeDetectorNPP/cannyEdgeDetectorNPP.cpp
+++ b/Samples/cannyEdgeDetectorNPP/cannyEdgeDetectorNPP.cpp
@@ -208,9 +208,6 @@ int main(int argc, char *argv[]) {
     saveImage(sResultFilename, oHostDst);
     std::cout << "Saved image: " << sResultFilename << std::endl;
 
-    nppiFree(oDeviceSrc.data());
-    nppiFree(oDeviceDst.data());
-
     exit(EXIT_SUCCESS);
   } catch (npp::Exception &rException) {
     std::cerr << "Program error! The following exception occurred: \n";