diff --git a/slideshow/source/engine/OGLTrans/OGLTrans_TransitionImpl.cxx b/slideshow/source/engine/OGLTrans/OGLTrans_TransitionImpl.cxx
index 082aea75c537..90543fc4700f 100644
--- a/slideshow/source/engine/OGLTrans/OGLTrans_TransitionImpl.cxx
+++ b/slideshow/source/engine/OGLTrans/OGLTrans_TransitionImpl.cxx
@@ -25,8 +25,8 @@
  *
  ************************************************************************/
 
-#include "OGLTrans_TransitionImpl.hxx"
 #include "OGLTrans_Shaders.hxx"
+#include "OGLTrans_TransitionImpl.hxx"
 #include <GL/gl.h>
 #include <math.h>