diff --git a/Samples/4_CUDA_Libraries/oceanFFT/oceanFFT.cpp b/Samples/4_CUDA_Libraries/oceanFFT/oceanFFT.cpp
index a4cc4890..e19eed80 100644
--- a/Samples/4_CUDA_Libraries/oceanFFT/oceanFFT.cpp
+++ b/Samples/4_CUDA_Libraries/oceanFFT/oceanFFT.cpp
@@ -46,12 +46,12 @@
 #endif
 
 // includes
+#include <helper_gl.h>
 #include <cuda_gl_interop.h>
 #include <cuda_runtime.h>
 #include <cufft.h>
 #include <helper_cuda.h>
 #include <helper_functions.h>
-#include <helper_gl.h>
 #include <math.h>
 #include <math_constants.h>
 #include <stdio.h>
diff --git a/Samples/5_Domain_Specific/marchingCubes/marchingCubes.cpp b/Samples/5_Domain_Specific/marchingCubes/marchingCubes.cpp
index 555fdde6..71c08ee2 100644
--- a/Samples/5_Domain_Specific/marchingCubes/marchingCubes.cpp
+++ b/Samples/5_Domain_Specific/marchingCubes/marchingCubes.cpp
@@ -87,11 +87,11 @@
 #endif
 
 // includes
+#include <helper_gl.h>
 #include <cuda_gl_interop.h>
 #include <cuda_runtime.h>
 #include <helper_cuda.h> // includes cuda.h and cuda_runtime_api.h
 #include <helper_functions.h>
-#include <helper_gl.h>
 #include <math.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/Samples/5_Domain_Specific/nbody/render_particles.cpp b/Samples/5_Domain_Specific/nbody/render_particles.cpp
index 12432f9e..dfcbf966 100644
--- a/Samples/5_Domain_Specific/nbody/render_particles.cpp
+++ b/Samples/5_Domain_Specific/nbody/render_particles.cpp
@@ -29,10 +29,10 @@
 
 #define HELPERGL_EXTERN_GL_FUNC_IMPLEMENTATION
 #include <assert.h>
+#include <helper_gl.h>
 #include <cuda_gl_interop.h>
 #include <cuda_runtime.h>
 #include <helper_cuda.h>
-#include <helper_gl.h>
 #include <math.h>
 
 #define GL_POINT_SPRITE_ARB             0x8861
diff --git a/Samples/5_Domain_Specific/smokeParticles/ParticleSystem.cpp b/Samples/5_Domain_Specific/smokeParticles/ParticleSystem.cpp
index 3952b7b6..6c675ca9 100644
--- a/Samples/5_Domain_Specific/smokeParticles/ParticleSystem.cpp
+++ b/Samples/5_Domain_Specific/smokeParticles/ParticleSystem.cpp
@@ -33,11 +33,11 @@
 #include <memory.h>
 
 #define HELPERGL_EXTERN_GL_FUNC_IMPLEMENTATION
+#include <helper_gl.h>
 #include <cuda_gl_interop.h>
 #include <cuda_runtime.h>
 #include <helper_cuda.h>
 #include <helper_functions.h>
-#include <helper_gl.h>
 
 #include "ParticleSystem.cuh"
 #include "ParticleSystem.h"
diff --git a/Samples/5_Domain_Specific/smokeParticles/ParticleSystem_cuda.cu b/Samples/5_Domain_Specific/smokeParticles/ParticleSystem_cuda.cu
index 09838164..2912c2c0 100644
--- a/Samples/5_Domain_Specific/smokeParticles/ParticleSystem_cuda.cu
+++ b/Samples/5_Domain_Specific/smokeParticles/ParticleSystem_cuda.cu
@@ -31,9 +31,9 @@ This file contains simple wrapper functions that call the CUDA kernels
 #define HELPERGL_EXTERN_GL_FUNC_IMPLEMENTATION
 #include <cstdio>
 #include <cstdlib>
+#include <helper_gl.h>
 #include <cuda_gl_interop.h>
 #include <helper_cuda.h>
-#include <helper_gl.h>
 #include <string.h>
 
 #include "ParticleSystem.cuh"