diff --git a/src/graphics/post_processing.cpp b/src/graphics/post_processing.cpp
index 4a1024868..d194c2a70 100644
--- a/src/graphics/post_processing.cpp
+++ b/src/graphics/post_processing.cpp
@@ -41,6 +41,22 @@
 using namespace video;
 using namespace scene;
 
+// ============================================================================
+class Gaussian3HBlurShader : public Shader<Gaussian3HBlurShader,
+                                           core::vector2df>,
+                            public TextureReadNew<ST_BILINEAR_CLAMPED_FILTERED>
+{
+public:
+    Gaussian3HBlurShader()
+    {
+        loadProgram(OBJECT, GL_VERTEX_SHADER, "screenquad.vert",
+                            GL_FRAGMENT_SHADER, "gaussian3h.frag");
+        assignUniforms("pixel");
+
+        assignSamplerNames(m_program, 0, "tex", ST_BILINEAR_CLAMPED_FILTERED);
+    }   // Gaussian3HBlurShader
+};   // Gaussian3HBlurShader
+
 // ============================================================================
 class ComputeShadowBlurVShader : public Shader<ComputeShadowBlurVShader,
                                                core::vector2df,
@@ -516,8 +532,8 @@ void PostProcessing::renderGaussian3Blur(FrameBuffer &in_fbo, FrameBuffer &auxil
     {
         in_fbo.Bind();
 
-        FullScreenShader::Gaussian3HBlurShader::getInstance()->setTextureUnits(auxiliary.getRTT()[0]);
-        DrawFullScreenEffect<FullScreenShader::Gaussian3HBlurShader>(core::vector2df(inv_width, inv_height));
+        Gaussian3HBlurShader::getInstance()->setTextureUnits(auxiliary.getRTT()[0]);
+        DrawFullScreenEffect<Gaussian3HBlurShader>(core::vector2df(inv_width, inv_height));
     }
 }
 
diff --git a/src/graphics/shaders.cpp b/src/graphics/shaders.cpp
index a6bb022d4..75dda2821 100644
--- a/src/graphics/shaders.cpp
+++ b/src/graphics/shaders.cpp
@@ -1014,17 +1014,6 @@ namespace FullScreenShader
         assignSamplerNames(m_program, 0, "tex", ST_BILINEAR_CLAMPED_FILTERED);
     }
 
-    Gaussian3HBlurShader::Gaussian3HBlurShader()
-    {
-        loadProgram(OBJECT,
-            GL_VERTEX_SHADER, "screenquad.vert",
-            GL_FRAGMENT_SHADER, "gaussian3h.frag");
-        assignUniforms("pixel");
-
-        assignSamplerNames(m_program, 0, "tex", ST_BILINEAR_CLAMPED_FILTERED);
-    }
-
-
     PassThroughShader::PassThroughShader()
     {
         loadProgram(OBJECT,
diff --git a/src/graphics/shaders.hpp b/src/graphics/shaders.hpp
index 69b9a540b..47c884fc9 100644
--- a/src/graphics/shaders.hpp
+++ b/src/graphics/shaders.hpp
@@ -316,13 +316,6 @@ public:
     HorizontalBlurShader();
 };
 
-class Gaussian3HBlurShader : public Shader<Gaussian3HBlurShader, core::vector2df>,
-                            public TextureReadNew<ST_BILINEAR_CLAMPED_FILTERED>
-{
-public:
-    Gaussian3HBlurShader();
-};
-
 
 class PassThroughShader : public Shader<PassThroughShader, int, int>,
                           public TextureReadNew<ST_BILINEAR_FILTERED>