diff --git a/macros.tex b/macros.tex
index 88a348f..3381963 100644
--- a/macros.tex
+++ b/macros.tex
@@ -23,6 +23,7 @@
 \newcommand{\DLP}{\textsf{DLP}\xspace}
 \newcommand{\DDH}{\textsf{DDH}\xspace}
 \newcommand{\SXDH}{\textsf{SXDH}\xspace}
+\newcommand{\SDL}{\textsf{SDL}\xspace}
 %% Lattices
 \newcommand{\SIS}{\textsf{SIS}\xspace}
 \newcommand{\LWE}{\textsf{LWE}\xspace}
diff --git a/symbols.tex b/symbols.tex
index 9c16c87..710f8c3 100644
--- a/symbols.tex
+++ b/symbols.tex
@@ -20,5 +20,6 @@
   $\SIVP$    & Shortest Independent Vectors Problem     \\
   $\DLP$     & Discrete Logarithm Problem               \\
   $\DDH$     & Decisional Diffie-Hellman                \\
-  $\SXDH$    & Symmetric eXternal Diffie-Hellman
+  $\SXDH$    & Symmetric eXternal Diffie-Hellman        \\
+  $\SDL$     & Symmetric Discrete Logarithm
 \end{tabular}