diff --git a/matlab/latex/collect_latex_files.m b/matlab/latex/collect_latex_files.m
index e5d776febb0780919e4dad8fab51bfd9aebab7ff..a23ac68d51aa75952e698ba06d62fd063c3bfec4 100644
--- a/matlab/latex/collect_latex_files.m
+++ b/matlab/latex/collect_latex_files.m
@@ -35,7 +35,7 @@ fprintf(fid,'%s \n','\usepackage{psfrag}');
 fprintf(fid,'%s \n','\usepackage{graphicx}');
 fprintf(fid,'%s \n','\usepackage{epstopdf}');
 fprintf(fid,'%s \n','\usepackage{longtable,booktabs}');
-fprintf(fid,'%s \n','\usepackage{amsmath,amsfonts}');
+fprintf(fid,'%s \n','\usepackage{amsmath,amsfonts,amssymb}');
 fprintf(fid,'%s \n','\usepackage{breqn}');
 fprintf(fid,'%s \n','\usepackage{float,morefloats,caption}');
 fprintf(fid,'%s \n','\begin{document}');