diff --git a/wrap/io_trimesh/export_u3d.h b/wrap/io_trimesh/export_u3d.h
index 82d2b43b..6ca1aba5 100644
--- a/wrap/io_trimesh/export_u3d.h
+++ b/wrap/io_trimesh/export_u3d.h
@@ -162,7 +162,7 @@ private:
 		std::string u3d_final =  QtUtilityFunctions::fileNameFromTrimmedPath(file_trim).toStdString();
 		latex.write(0,"\\documentclass[a4paper]{article}");
 		latex.write(0,"\\usepackage[3D]{movie15}");
-                latex.write(0,"\usepackage{hyperref}");
+                latex.write(0,"\\usepackage{hyperref}");
 		latex.write(0,"\\usepackage[UKenglish]{babel}");
 		latex.write(0,"\\begin{document}");
 		latex.write(0,"\\includemovie[");